ASTROSAT CZTI

Data Quality Report

Orbit 29303

Creation date: 2024-06-27T20:02:34.508685
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/AS1A10_050T01_9000004212_29303cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29303cztM0_level2_quad_clean.evt
Size (bytes)833,719,68084,628,800
Size795.1 MB 80.7 MB
Events in quadrant A3,425,284537,484
Events in quadrant B4,910,344531,212
Events in quadrant C9,203,515495,236
Events in quadrant D7,224,425497,076

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147511
B0192341
C0324664
D0264431

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7203540.749688%
B72044816.676846%
C7203182425.322782%
D720398713.702624%

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 7583 7204 0 0 0.00% 0.00%
B 7584 7205 268 268 3.53% 3.72%
C 7583 7204 446 446 5.88% 6.19%
D 7583 7203 653 653 8.61% 9.07%

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 13 254 16181 85.59 884 865 178.9
A 3 137 8438 42.32 884 865 178.9
A 0 226 7843 39.0 884 865 178.9
B 10 245 570751 3541.15 841 820 160.9
B 5 172 549497 3409.09 841 820 160.9
B 5 255 415728 2577.95 841 820 160.9
C 3 233 5799635 32806.77 751 757 176.8
C 14 238 241659 1362.89 751 757 176.8
C 14 254 195593 1102.27 751 757 176.8
D 1 52 2183132 11246.91 804 782 194.0
D 12 233 867888 4468.7 804 782 194.0
D 8 195 433224 2228.62 804 782 194.0

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