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Plate

The SDSS takes spectra using a large aluminum plate that can collect light from hundreds to thousands of spectra at a time. Plates are given incremental plate numbers, and are labeled with the MJD on which they were observed. If a plate is observed on multiple nights, it will appear under each MJD. Data about each plate are are stored in the Plate table.

The Plate Data table on the left below shows the data associated with the plate on which this object's spectrum was taken. The All Spectra on this plate table shows all the spectra that were measured on that plate, including this object's. Click on one of those links to go to the Explore page for that object.

Plate Data

plateID3627649581417865216
firstReleasedr8
plate3222
mjd54862
mjdList54862
surveysegue2
programNamesegue2
instrumentSDSS
chunk2008.12.a.segue2
plateRun2008.12.a.segue2
designComments
plateQualitygood
qualityCommentsstandard SEGUE-2
plateSN249.0809
deredSN2-9999
ra173.089
dec27.8298
run2d104
run1d
runsspp122
tile-1
designID416
locationID204
iopVersionv4_39_0
camVersionSPEC1 v4_8
taiHMS07:10:30.56
dateObs2009-01-31
timeSystai
cx-0.877912911189428
cy0.106410155052003
cz0.466846654982889
cartridgeID8
tai4740106411.73
taiBegin4740100747
taiEnd4740109720
airmass1.28224
mapMjd5486201
mapName3222-54862-01
plugFileplPlugMapM-3222-54862-01.par
expTime7802
expTimeB17802
expTimeB27802
expTimeR17802
expTimeR27802
vers2dNOCVS:v5_3_23
verscombNOCVS:v5_3_23
vers1dNOCVS:v5_3_23
snturnoff32.56608
nturnoff240
nExp20
nExpB15
nExpB25
nExpR15
nExpR25
sn1_g63.3683
sn1_r61.2231
sn1_i50.5871
sn2_g71.6315
sn2_r60.065
sn2_i49.0809
dered_sn1_g-9999
dered_sn1_r-9999
dered_sn1_i-9999
dered_sn2_g-9999
dered_sn2_r-9999
dered_sn2_i-9999
helioRV-14.55974
gOffStd0.00152969
gRMSStd0.0605673
rOffStd-0.000537395
rRMSStd0.0400382
iOffStd0.00490952
iRMSStd0.0485974
grOffStd0.0094099
grRMSStd0.0602552
riOffStd-0.00962162
riRMSStd0.0218224
gOffGal0.0273943
gRMSGal0.109091
rOffGal0.0311241
rRMSGal0.0788628
iOffGal0.0119448
iRMSGal0.0658601
grOffGal-0.0155983
grRMSGal0.0857048
riOffGal0.00559139
riRMSGal0.0458886
nGuide71
seeing201.202
seeing501.356
seeing801.552
rmsoff200.179405
rmsoff500.3094128
rmsoff800.4456042
airtemp1.26
sfd_used0
xSigma0.937174
xSigMin0.897808
xSigMax0.993416
wSigma0.8981093
wSigMin0.854043
wSigMax1.0011
xChi21.58025
xChi2Min1.1887
xChi2Max2.28645
skyChi21.202643
skyChi2Min1.06742
skyChi2Max1.442035
fBadPix0.065644
fBadPix10.0660394
fBadPix20.0652487
status2dDone
statuscombineDone
status1dDone
nTotal640
nGalaxy0
nQSO15
nStar586
nSky32
nUnknown7
isBest1
isPrimary1
isTile0
ha30
mjdDesign54817
theta0
fscanVersionv4_3_1
fmapVersionv4_3_1
fscanModeextreme
fscanSpeed500
htmID15507118199648
loadVersion315

All Spectra on this plate

[1] STAR z=0.001 [2] QSO z=0.475 [3] STAR z=-0.00 [4] STAR z=0.001
[5] STAR z=-0.00 [6] STAR z=0.000 [7] STAR z=0.001 [8] STAR z=0.000
[9] STAR z=0.000 [10] STAR z=0.000 [11] STAR z=0.000 [12] STAR z=-0.00
[13] STAR z=0.001 [14] STAR z=-0.00 [15] STAR z=0.000 [16] STAR z=-0.00
[17] STAR z=0.000 [18] STAR z=-0.00 [19] STAR z=0.000 [20] STAR z=0.000
[21] STAR z=0.000 [22] STAR z=0.000 [23] GALAXY z=0.941 [24] STAR z=0.001
[25] QSO z=2.939 [26] STAR z=-0.00 [27] STAR z=-0.00 [28] STAR z=0.001
[29] STAR z=0.000 [30] STAR z=0.000 [31] STAR z=0.000 [32] STAR z=0.000
[33] STAR z=-0.00 [34] STAR z=0.000 [35] STAR z=-0.00 [36] STAR z=-0.00
[37] STAR z=-0.00 [38] STAR z=0.000 [39] STAR z=-0.00 [40] STAR z=-0.00
[41] STAR z=-0.00 [42] STAR z=-0.00 [43] STAR z=-0.00 [44] STAR z=-0.00
[45] QSO z=0.979 [46] STAR z=-0.00 [47] STAR z=0.000 [48] STAR z=0.000
[49] STAR z=-0.00 [50] STAR z=0.000 [51] STAR z=-0.00 [52] STAR z=-0.00
[53] STAR z=0.000 [54] STAR z=0.001 [55] STAR z=0.000 [56] STAR z=0.000
[57] STAR z=0.001 [58] STAR z=0.000 [59] STAR z=0.000 [60] STAR z=-0.00
[61] STAR z=-0.00 [62] STAR z=-0.00 [63] STAR z=-0.00 [64] STAR z=0.000
[65] STAR z=0.000 [66] STAR z=0.000 [67] STAR z=-0.00 [68] STAR z=0.000
[69] STAR z=0.000 [70] STAR z=-0.00 [71] STAR z=-0.00 [72] STAR z=-0.00
[73] STAR z=-0.00 [74] STAR z=0.000 [75] STAR z=-0.00 [76] STAR z=0.000
[77] STAR z=0.000 [78] STAR z=-0.00 [79] STAR z=-0.00 [80] STAR z=0.000
[81] STAR z=-0.00 [82] QSO z=2.569 [83] STAR z=-0.00 [84] STAR z=-0.00
[85] STAR z=-0.00 [86] STAR z=-0.00 [87] STAR z=-0.00 [88] STAR z=0.000
[89] STAR z=-0.00 [90] STAR z=0.000 [91] GALAXY z=0.000 [92] STAR z=-0.00
[93] STAR z=-0.00 [94] STAR z=0.000 [95] STAR z=-0.00 [96] STAR z=-0.00
[97] STAR z=-0.00 [98] QSO z=0.893 [99] STAR z=0.000 [100] STAR z=0.001
[101] STAR z=-0.00 [102] STAR z=-0.00 [103] STAR z=0.000 [104] STAR z=0.003
[105] STAR z=0.000 [106] STAR z=0.001 [107] STAR z=0.000 [108] STAR z=-0.00
[109] STAR z=0.000 [110] STAR z=0.000 [111] STAR z=-0.00 [112] STAR z=-0.00
[113] STAR z=0.000 [114] STAR z=-0.00 [115] STAR z=0.000 [116] STAR z=-0.00
[117] STAR z=0.001 [118] STAR z=0.000 [119] STAR z=-0.00 [120] QSO z=1.794
[121] STAR z=-0.00 [122] STAR z=0.001 [123] STAR z=0.000 [124] QSO z=0.416
[125] STAR z=0.000 [126] STAR z=0.001 [127] STAR z=0.001 [128] STAR z=-0.00
[129] STAR z=-0.00 [130] STAR z=-0.00 [131] STAR z=-0.00 [132] STAR z=-0.00
[133] STAR z=0.000 [134] STAR z=-0.00 [135] STAR z=0.001 [136] STAR z=-0.00
[137] STAR z=-0.00 [138] STAR z=-0.00 [139] STAR z=-0.00 [140] STAR z=0.000
[141] STAR z=-0.00 [142] STAR z=-0.00 [143] STAR z=0.004 [144] STAR z=0.000
[145] STAR z=0.000 [146] STAR z=0.000 [147] STAR z=0.000 [148] STAR z=-0.00
[149] STAR z=-0.00 [150] STAR z=-0.00 [151] STAR z=0.000 [152] STAR z=-0.00
[153] STAR z=-0.00 [154] STAR z=-0.00 [155] STAR z=-0.00 [156] STAR z=-0.00
[157] STAR z=-0.00 [158] QSO z=0.681 [159] STAR z=0.001 [160] STAR z=0.000
[161] STAR z=-0.00 [162] STAR z=-0.00 [163] STAR z=0.000 [164] STAR z=0.000
[165] STAR z=0.000 [166] STAR z=-0.00 [167] STAR z=-0.00 [168] STAR z=0.000
[169] STAR z=0.000 [170] STAR z=-0.00 [171] STAR z=0.000 [172] STAR z=0.000
[173] STAR z=-0.00 [174] STAR z=0.000 [175] STAR z=0.000 [176] STAR z=0.001
[177] STAR z=0.000 [178] STAR z=-0.00 [179] GALAXY z=0.768 [180] STAR z=-0.00
[181] GALAXY z=-0.01 [182] STAR z=0.000 [183] STAR z=-0.00 [184] STAR z=0.000
[185] STAR z=0.000 [186] STAR z=0.000 [187] STAR z=0.000 [188] STAR z=-0.00
[189] STAR z=-0.00 [190] STAR z=-0.00 [191] STAR z=-0.00 [192] STAR z=-0.00
[193] STAR z=0.000 [194] STAR z=-0.00 [195] STAR z=0.000 [196] STAR z=0.000
[197] QSO z=0.923 [198] STAR z=-0.00 [199] STAR z=-0.00 [200] STAR z=-0.00
[201] STAR z=-0.00 [202] STAR z=-0.00 [203] STAR z=0.000 [204] STAR z=0.000
[205] STAR z=-0.00 [206] STAR z=0.000 [207] STAR z=0.000 [208] STAR z=0.001
[209] STAR z=-0.00 [210] STAR z=0.000 [211] STAR z=-0.00 [212] STAR z=-0.00
[213] STAR z=0.000 [214] STAR z=0.000 [215] STAR z=-0.00 [216] STAR z=0.000
[217] STAR z=0.000 [218] STAR z=-0.00 [219] STAR z=-0.00 [220] QSO z=0.059
[221] STAR z=0.001 [222] STAR z=-0.00 [223] QSO z=3.079 [224] STAR z=0.000
[225] STAR z=0.001 [226] STAR z=0.000 [227] GALAXY z=0.162 [228] STAR z=0.000
[229] STAR z=-0.00 [230] STAR z=-0.00 [231] STAR z=0.000 [232] STAR z=0.000
[233] STAR z=-0.00 [234] STAR z=-0.00 [235] STAR z=0.000 [236] STAR z=0.000
[237] STAR z=0.000 [238] QSO z=0.377 [239] STAR z=-0.00 [240] STAR z=-0.00
[241] STAR z=-0.00 [242] STAR z=0.001 [243] STAR z=0.000 [244] STAR z=-0.00
[245] STAR z=0.000 [246] STAR z=-0.00 [247] STAR z=0.000 [248] STAR z=0.000
[249] STAR z=0.000 [250] STAR z=0.000 [251] STAR z=0.001 [252] STAR z=0.001
[253] STAR z=0.000 [254] QSO z=1.332 [255] STAR z=-0.00 [256] STAR z=0.001
[257] STAR z=0.000 [258] STAR z=0.000 [259] STAR z=0.001 [260] STAR z=0.000
[261] QSO z=2.714 [262] STAR z=-0.00 [263] STAR z=-0.00 [264] STAR z=-0.00
[265] STAR z=-0.00 [266] STAR z=0.000 [267] STAR z=-0.00 [268] STAR z=-0.00
[269] STAR z=-0.00 [270] STAR z=-0.00 [271] STAR z=-0.00 [272] STAR z=-0.00
[273] STAR z=0.001 [274] STAR z=-0.00 [275] STAR z=0.000 [276] STAR z=-0.00
[277] STAR z=0.000 [278] QSO z=0.964 [279] STAR z=-0.00 [280] STAR z=0.000
[281] STAR z=-0.00 [282] STAR z=-0.00 [283] QSO z=2.623 [284] STAR z=-0.00
[285] STAR z=0.000 [286] STAR z=-0.00 [287] STAR z=-0.00 [288] STAR z=-0.00
[289] STAR z=0.000 [290] STAR z=-0.00 [291] STAR z=-0.00 [292] STAR z=-0.00
[293] STAR z=-0.00 [294] STAR z=-0.00 [295] GALAXY z=0.000 [296] STAR z=0.001
[297] STAR z=0.000 [298] STAR z=-0.00 [299] STAR z=0.001 [300] STAR z=0.000
[301] STAR z=0.000 [302] QSO z=2.849 [303] STAR z=-0.00 [304] STAR z=-0.00
[305] STAR z=0.000 [306] STAR z=0.001 [307] STAR z=0.000 [308] STAR z=0.000
[309] STAR z=0.000 [310] STAR z=-0.00 [311] STAR z=0.000 [312] STAR z=-0.00
[313] STAR z=0.001 [314] STAR z=-0.00 [315] STAR z=0.000 [316] STAR z=0.000
[317] STAR z=-0.00 [318] STAR z=0.000 [319] QSO z=1.202 [320] STAR z=-0.00
[321] STAR z=-0.00 [322] STAR z=0.000 [323] STAR z=0.000 [324] GALAXY z=0.043
[325] STAR z=-0.00 [326] STAR z=-0.00 [327] STAR z=-0.00 [328] STAR z=-0.00
[329] STAR z=0.000 [330] STAR z=-0.00 [331] STAR z=-0.00 [332] STAR z=0.000
[333] STAR z=-0.00 [334] STAR z=0.000 [335] STAR z=-0.00 [336] STAR z=-0.00
[337] STAR z=0.000 [338] STAR z=-0.00 [339] STAR z=-0.00 [340] STAR z=-0.00
[341] STAR z=0.000 [342] STAR z=-0.00 [343] STAR z=0.001 [344] STAR z=-0.00
[345] QSO z=1.610 [346] STAR z=0.000 [347] STAR z=0.000 [348] STAR z=0.000
[349] STAR z=-0.00 [350] STAR z=0.000 [351] STAR z=-0.00 [352] STAR z=0.000
[353] STAR z=-0.00 [354] STAR z=0.000 [355] STAR z=0.000 [356] STAR z=-0.00
[357] STAR z=-0.00 [358] STAR z=-0.00 [359] STAR z=-0.00 [360] STAR z=-0.00
[361] STAR z=0.001 [362] STAR z=0.000 [363] STAR z=0.000 [364] STAR z=-0.00
[365] STAR z=0.000 [366] STAR z=0.000 [367] STAR z=-0.00 [368] STAR z=0.000
[369] STAR z=0.000 [370] STAR z=-0.00 [371] STAR z=0.000 [372] STAR z=0.000
[373] STAR z=0.000 [374] STAR z=0.000 [375] STAR z=0.000 [376] STAR z=0.000
[377] GALAXY z=0.742 [378] STAR z=0.001 [379] STAR z=0.000 [380] STAR z=0.000
[381] STAR z=0.000 [382] STAR z=-0.00 [383] STAR z=0.000 [384] STAR z=-0.00
[385] STAR z=-0.00 [386] STAR z=-0.00 [387] STAR z=-0.00 [388] STAR z=-0.00
[389] STAR z=-0.00 [390] STAR z=0.000 [391] STAR z=-0.00 [392] STAR z=0.000
[393] STAR z=0.000 [394] STAR z=0.000 [395] STAR z=0.000 [396] STAR z=0.000
[397] QSO z=1.039 [398] STAR z=0.003 [399] STAR z=0.000 [400] STAR z=0.001
[401] STAR z=0.000 [402] STAR z=-0.00 [403] STAR z=-0.00 [404] STAR z=-0.00
[405] STAR z=0.001 [406] STAR z=-0.00 [407] STAR z=-0.00 [408] STAR z=-0.00
[409] STAR z=0.000 [410] STAR z=0.001 [411] STAR z=-0.00 [412] STAR z=-0.00
[413] STAR z=-0.00 [414] STAR z=0.000 [415] STAR z=0.000 [416] STAR z=0.000
[417] QSO z=1.203 [418] QSO z=0.728 [419] STAR z=0.000 [420] STAR z=0.000
[421] STAR z=0.000 [422] STAR z=-0.00 [423] STAR z=-0.00 [424] QSO z=2.580
[425] STAR z=0.000 [426] STAR z=0.000 [427] STAR z=0.001 [428] STAR z=-0.00
[429] STAR z=0.000 [430] STAR z=0.000 [431] STAR z=0.000 [432] STAR z=0.000
[433] STAR z=0.000 [434] STAR z=-0.00 [435] STAR z=-0.00 [436] STAR z=-0.00
[437] STAR z=0.000 [438] STAR z=0.000 [439] GALAXY z=0.718 [440] STAR z=0.000
[441] STAR z=-0.00 [442] STAR z=-0.00 [443] GALAXY z=0.665 [444] STAR z=0.000
[445] STAR z=-0.00 [446] STAR z=0.001 [447] STAR z=0.000 [448] STAR z=-0.00
[449] STAR z=0.000 [450] STAR z=-0.00 [451] STAR z=0.000 [452] STAR z=-0.00
[453] STAR z=0.000 [454] STAR z=-0.00 [455] STAR z=-0.00 [456] STAR z=0.000
[457] STAR z=-0.00 [458] STAR z=-0.00 [459] STAR z=-0.00 [460] STAR z=0.000
[461] QSO z=2.912 [462] QSO z=0.404 [463] STAR z=-0.00 [464] STAR z=-0.00
[465] STAR z=-0.00 [466] STAR z=0.000 [467] STAR z=0.000 [468] STAR z=0.000
[469] STAR z=0.000 [470] STAR z=0.000 [471] STAR z=0.000 [472] STAR z=0.000
[473] STAR z=0.000 [474] STAR z=-0.00 [475] STAR z=0.000 [476] STAR z=0.000
[477] STAR z=0.000 [478] STAR z=0.000 [479] GALAXY z=0.000 [480] STAR z=0.000
[481] STAR z=-0.00 [482] STAR z=0.004 [483] STAR z=-0.00 [484] STAR z=-0.00
[485] STAR z=0.000 [486] STAR z=0.000 [487] STAR z=0.000 [488] STAR z=-0.00
[489] STAR z=0.000 [490] STAR z=0.001 [491] STAR z=-0.00 [492] STAR z=0.000
[493] STAR z=-0.00 [494] STAR z=-0.00 [495] STAR z=-0.00 [496] STAR z=0.000
[497] STAR z=-0.00 [498] STAR z=-0.00 [499] STAR z=0.000 [500] STAR z=0.000
[501] QSO z=4.631 [502] STAR z=0.000 [503] STAR z=0.000 [504] STAR z=0.000
[505] STAR z=-0.00 [506] STAR z=-0.00 [507] STAR z=0.000 [508] STAR z=0.000
[509] STAR z=-0.00 [510] STAR z=-0.00 [511] STAR z=-0.00 [512] STAR z=-0.00
[513] STAR z=0.000 [514] STAR z=-0.00 [515] STAR z=0.000 [516] STAR z=-0.00
[517] STAR z=-0.00 [518] STAR z=0.000 [519] STAR z=0.001 [520] STAR z=0.000
[521] STAR z=0.000 [522] QSO z=6.560 [523] STAR z=-0.00 [524] STAR z=0.000
[525] STAR z=0.001 [526] STAR z=-0.00 [527] STAR z=0.000 [528] STAR z=-0.00
[529] STAR z=0.000 [530] STAR z=-0.00 [531] STAR z=-0.00 [532] STAR z=0.000
[533] STAR z=0.000 [534] STAR z=-0.00 [535] STAR z=0.000 [536] STAR z=0.000
[537] STAR z=0.000 [538] STAR z=0.000 [539] STAR z=0.000 [540] STAR z=0.000
[541] STAR z=0.000 [542] STAR z=-0.00 [543] STAR z=0.003 [544] STAR z=0.000
[545] STAR z=0.000 [546] STAR z=0.000 [547] STAR z=0.000 [548] STAR z=-0.00
[549] STAR z=0.000 [550] STAR z=0.000 [551] STAR z=-0.00 [552] STAR z=0.000
[553] STAR z=-0.00 [554] STAR z=0.000 [555] STAR z=-0.00 [556] STAR z=0.000
[557] STAR z=0.000 [558] STAR z=0.000 [559] STAR z=0.000 [560] STAR z=-0.00
[561] STAR z=-0.00 [562] STAR z=-0.00 [563] STAR z=-0.00 [564] STAR z=0.000
[565] QSO z=0.643 [566] STAR z=0.000 [567] GALAXY z=0.000 [568] STAR z=0.000
[569] STAR z=-0.00 [570] STAR z=0.000 [571] STAR z=0.000 [572] STAR z=0.000
[573] STAR z=-0.00 [574] STAR z=0.000 [575] STAR z=-0.00 [576] STAR z=0.000
[577] STAR z=0.000 [578] STAR z=0.000 [579] STAR z=0.000 [580] STAR z=0.000
[581] STAR z=0.000 [582] STAR z=-0.00 [583] STAR z=-0.00 [584] STAR z=0.000
[585] STAR z=-0.00 [586] STAR z=0.001 [587] STAR z=0.000 [588] STAR z=0.001
[589] STAR z=-0.00 [590] STAR z=0.000 [591] STAR z=0.000 [592] STAR z=0.000
[593] STAR z=0.000 [594] STAR z=-0.00 [595] STAR z=-0.00 [596] STAR z=0.000
[597] STAR z=-0.00 [598] QSO z=6.202 [599] STAR z=0.000 [600] STAR z=0.000
[601] STAR z=0.001 [602] STAR z=0.000 [603] STAR z=-0.00 [604] STAR z=0.000
[605] STAR z=0.000 [606] STAR z=0.001 [607] STAR z=0.000 [608] STAR z=-0.00
[609] STAR z=-0.00 [610] STAR z=0.000 [611] STAR z=-0.00 [612] STAR z=0.000
[613] STAR z=-0.00 [614] STAR z=-0.00 [615] STAR z=-0.00 [616] QSO z=1.139
[617] STAR z=-0.00 [618] STAR z=-0.00 [619] STAR z=0.000 [620] STAR z=-0.00
[621] STAR z=0.001 [622] STAR z=0.001 [623] STAR z=-0.00 [624] STAR z=-0.00
[625] STAR z=0.001 [626] STAR z=-0.00 [627] STAR z=-0.00 [628] STAR z=-0.00
[629] STAR z=-0.00 [630] STAR z=0.000 [631] STAR z=-0.00 [632] STAR z=-0.00
[633] STAR z=0.000 [634] STAR z=-0.00 [635] STAR z=-0.00 [636] STAR z=-0.00
[637] GALAXY z=0.728 [638] STAR z=-0.00 [639] QSO z=1.268 [640] STAR z=-0.00