ASTROSAT CZTI

Data Quality Report

Orbit 43657

Creation date: 2024-06-27T22:54:09.470440
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/AS1A12_068T05_9000005894_43657cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43657cztM0_level2_quad_clean.evt
Size (bytes)1,753,822,080122,497,920
Size1.6 GB 116.8 MB
Events in quadrant A7,817,1891,118,349
Events in quadrant B6,466,6271,131,801
Events in quadrant C23,440,614574,885
Events in quadrant D26,400,594157,481

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02163
B02156
C02182
D02180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0140
D0141

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031129436
B026738304
C0794142852
D0879482649

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104392932.806782%
B104593733.566307%
C10233764774.728819%
D1024110241100.000000%

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 12102 10554 121 121 1.00% 1.15%
B 12103 10543 199 199 1.64% 1.89%
C 12103 10456 7449 7449 61.55% 71.24%
D 12102 10449 9142 9142 75.54% 87.49%

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 1321014 5548.66 1149 1122 237.9
A 15 223 732624 3075.15 1149 1122 237.9
A 15 222 387278 1623.35 1149 1122 237.9
B 5 235 553228 2478.48 1139 1103 222.8
B 12 32 366189 1638.87 1139 1103 222.8
B 0 230 335763 1502.29 1139 1103 222.8
C 15 142 15117056 101377.39 636 637 149.1
C 15 158 2007661 13459.99 636 637 149.1
C 15 126 1992706 13359.69 636 637 149.1
D 8 192 22612930 358695.58 195 187 63.0
D 14 242 852996 13527.71 195 187 63.0
D 12 6 266886 4230.52 195 187 63.0

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