ASTROSAT CZTI

Data Quality Report

Orbit 16229

Creation date: 2024-06-27T17:19:40.163647
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/AS1T02_112T01_9000002390_16229cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16229cztM0_level2_quad_clean.evt
Size (bytes)525,182,40098,611,200
Size500.9 MB 94.0 MB
Events in quadrant A3,797,188632,905
Events in quadrant B4,611,196622,369
Events in quadrant C3,622,053626,654
Events in quadrant D3,402,450619,397

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158392
B0182271
C0150391
D0148611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69571221.753629%
B69573505.030904%
C69571041.494897%
D6957721.034929%

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 7414 6960 27 27 0.36% 0.39%
B 7414 6960 181 181 2.44% 2.60%
C 7414 6960 8 8 0.11% 0.11%
D 7414 6960 28 28 0.38% 0.40%

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 0 253 278962 1601.55 857 839 173.7
A 15 174 130038 743.98 857 839 173.7
A 4 2 27823 155.38 857 839 173.7
B 7 220 777021 4801.68 842 822 161.7
B 4 173 166257 1023.4 842 822 161.7
B 0 219 139235 856.24 842 822 161.7
C 3 233 174499 914.14 816 822 190.0
C 14 238 123282 644.56 816 822 190.0
C 0 207 103889 542.49 816 822 190.0
D 1 52 119958 578.33 832 808 206.0
D 15 0 90781 436.71 832 808 206.0
D 2 234 27279 128.48 832 808 206.0

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