ASTROSAT CZTI

Data Quality Report

Orbit 05790

Creation date: 2024-06-27T14:59:10.578441
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/AS1A02_106T01_9000000744_05790cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05790cztM0_level2_quad_clean.evt
Size (bytes)426,257,28061,951,680
Size406.5 MB 59.1 MB
Events in quadrant A3,128,394362,031
Events in quadrant B3,323,816370,740
Events in quadrant C3,031,961356,077
Events in quadrant D2,988,916339,257

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132553
B0137062
C0132342
D0132682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6412841.310044%
B64121161.809108%
C6412520.810979%
D6412410.639426%

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 7692 6413 0 0 0.00% 0.00%
B 7692 6413 13 13 0.17% 0.20%
C 7692 6413 0 0 0.00% 0.00%
D 7692 6413 1 1 0.01% 0.02%

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 8 15 11224 63.73 808 791 163.7
A 0 226 7840 43.06 808 791 163.7
A 12 194 7748 42.5 808 791 163.7
B 4 81 68380 437.42 818 799 154.5
B 15 54 45161 287.14 818 799 154.5
B 15 204 32467 204.97 818 799 154.5
C 13 61 6219 30.53 775 781 178.1
C 14 67 4273 19.6 775 781 178.1
C 1 16 2355 8.84 775 781 178.1
D 12 233 29155 150.43 774 750 188.8
D 11 241 15379 77.47 774 750 188.8
D 12 221 14112 70.76 774 750 188.8

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