Summary Page for Using LETG Spectra to Probe Anomalous Heating in the Upper Atmospheres of B Stars
Using LETG Spectra to Probe Anomalous Heating in the Upper Atmospheres of B Stars

Target: Spica (Alpha Vir)

Chandra
X-ray
Center

PI: Dr. Joseph Cassinelli 
Seq Num: 200278
Obs ID: 4509
Instrument: ACIS
Grating: LETG




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Level 1 Parameters
Level 2 Parameters

Level 1 Parameters
Parameter Value Description
ASCDSVER 7.6.7.2 ASCDS version number
DATE 2006-05-31T18:50:29 Date and time of file creation
DATE-OBS 2004-03-09T01:48:47 Observation start date
DATE-END 2004-03-10T03:32:47 Observation end date
RA_PNT 201.29089652129 Pointing RA
DEC_PNT -11.181065295827 Pointing Dec
ROLL_PNT 65.349435667534 Pointing Roll
RA_TARG 201.298333 Observer's specified target RA
DEC_TARG -11.161306 Observer's specified target Dec
DATAMODE FAINT Data mode
READMODE TIMED Read mode
FP_TEMP 153.76843262 Focal Plane Temperature [K]
FSW_VERS 30 ACIS flight software version number



Level 2 Parameters
Parameter Value Description
ASCDSVER 7.6.7.2 ASCDS version number
DATE 2006-05-31T19:20:02 Date and time of file creation
DATE-OBS 2004-03-09T01:48:47 Observation start date
DATE-END 2004-03-10T03:32:47 Observation end date
INSTRUME ACIS Instrument
DETNAM ACIS-456789 Detector
GRATING LETG Grating
OBJECT Spica (Alpha Vir) Source name
TITLE Using LETG Spectra to Probe Anomalous Heating in the Upper Atmospheres of B Stars Proposal title
OBSERVER Dr. Joseph Cassinelli Principal investigator
OBS_ID 4509 Observation id
SEQ_NUM 200278 Sequence number
RA_NOM 201.29089652129 Nominal RA
DEC_NOM -11.181065295827 Nominal Dec
ROLL_NOM 65.349435667534 Nominal Roll