ASTROSAT CZTI

Data Quality Report

Orbit 45888

Creation date: 2024-06-27T23:17:20.838827
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_188T01_9000006138_45888cztM0_level2.fits modeM0/AS1T05_188T01_9000006138_45888cztM0_level2_quad_clean.evt
Size (bytes)1,012,109,760156,386,880
Size965.2 MB 149.1 MB
Events in quadrant A8,859,6491,111,168
Events in quadrant B12,159,358943,850
Events in quadrant C4,806,5141,103,050
Events in quadrant D10,820,273842,011

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02140
B02140
C02140
D02140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0332351
B0434601
C0223071
D0395301

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A106041851.744625%
B10604214820.256507%
C106051111.046676%
D10605188617.784064%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 11049 10605 24 24 0.22% 0.23%
B 11049 10605 1496 1496 13.54% 14.11%
C 11050 10606 82 82 0.74% 0.77%
D 11050 10606 1553 1553 14.05% 14.64%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 4266034 17878.57 1149 1124 238.5
A 4 0 78246 323.3 1149 1124 238.5
A 2 79 58827 241.89 1149 1124 238.5
B 3 112 5610080 26509.42 1072 1040 211.6
B 0 189 1689268 7978.9 1072 1040 211.6
B 4 171 348459 1641.97 1072 1040 211.6
C 12 2 340244 1258.26 1136 1139 269.5
C 2 14 15458 53.13 1136 1139 269.5
C 10 20 11047 36.76 1136 1139 269.5
D 1 52 1820260 6959.85 1044 1013 261.4
D 12 233 1740328 6654.06 1044 1013 261.4
D 13 249 1572995 6013.89 1044 1013 261.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter