ASTROSAT CZTI

Data Quality Report

Orbit 05300

Creation date: 2024-06-27T14:53:40.371004
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/AS1G05_212T01_9000000672_05300cztM0_level2.evt modeM0/AS1G05_212T01_9000000672_05300cztM0_level2_quad_clean.evt
Size (bytes)567,472,320107,579,520
Size541.2 MB 102.6 MB
Events in quadrant A3,096,846702,710
Events in quadrant B3,364,209710,407
Events in quadrant C3,330,383715,123
Events in quadrant D6,915,046637,330

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144393
B0149604
C0144902
D0255892

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7071450.636402%
B7070660.933522%
C7071580.820252%
D7071116616.489888%

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 7771 7073 2 2 0.03% 0.03%
B 7771 7073 5 5 0.06% 0.07%
C 7771 7073 0 0 0.00% 0.00%
D 7771 7073 1022 1022 13.15% 14.45%

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 50 35499 216.09 787 768 160.7
A 13 251 19317 115.41 787 768 160.7
A 12 194 7953 44.7 787 768 160.7
B 4 48 209701 1380.47 799 779 151.3
B 15 204 19889 126.27 799 779 151.3
B 12 111 13443 83.68 799 779 151.3
C 1 16 265995 1478.55 784 785 179.4
C 13 61 6347 31.01 784 785 179.4
C 14 67 3597 15.68 784 785 179.4
D 11 145 3719267 20787.84 728 703 178.9
D 8 195 138073 767.94 728 703 178.9
D 2 136 115627 642.46 728 703 178.9

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