ASTROSAT CZTI

Data Quality Report

Orbit 07526

Creation date: 2024-06-27T15:20:50.572982
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/AS1G06_076T01_9000001038_07526cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07526cztM0_level2_quad_clean.evt
Size (bytes)478,028,16068,397,120
Size455.9 MB 65.2 MB
Events in quadrant A3,264,863411,068
Events in quadrant B3,313,508418,498
Events in quadrant C3,272,220403,216
Events in quadrant D4,183,878383,610

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138332
B0139021
C0138931
D0168421

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65151251.918649%
B65151241.903300%
C65151101.688411%
D65153024.635457%

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 7770 6515 2 2 0.03% 0.03%
B 7770 6515 0 0 0.00% 0.00%
C 7770 6515 6 6 0.08% 0.09%
D 7770 6515 183 183 2.36% 2.81%

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 13 248 22663 130.13 839 820 167.8
A 13 14 11693 64.78 839 820 167.8
A 0 226 8090 43.31 839 820 167.8
B 10 245 29285 182.68 842 824 155.8
B 0 214 21272 131.25 842 824 155.8
B 12 111 15045 91.28 842 824 155.8
C 9 68 48356 259.81 805 811 183.0
C 1 16 45690 245.25 805 811 183.0
C 8 229 36245 193.63 805 811 183.0
D 2 152 521531 2677.58 804 780 194.5
D 2 244 239562 1227.76 804 780 194.5
D 12 221 93263 475.52 804 780 194.5

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