ASTROSAT CZTI

Data Quality Report

Orbit 15096

Creation date: 2024-06-27T17:03:41.148101
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/AS1G08_028T01_9000002220_15096cztM0_level2.evt modeM0/AS1G08_028T01_9000002220_15096cztM0_level2_quad_clean.evt
Size (bytes)462,623,04094,763,520
Size441.2 MB 90.4 MB
Events in quadrant A3,139,907618,986
Events in quadrant B3,763,778635,988
Events in quadrant C3,557,866607,391
Events in quadrant D3,128,559575,303

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130503
B0151672
C0143662
D0134032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6191300.484574%
B61911482.390567%
C6191210.339202%
D6191580.936844%

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 7562 6193 0 0 0.00% 0.00%
B 7562 6192 14 14 0.19% 0.23%
C 7562 6193 2 2 0.03% 0.03%
D 7562 6193 43 43 0.57% 0.69%

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 12 189 40246 243.32 807 793 162.1
A 0 226 7217 39.62 807 793 162.1
A 12 194 5569 29.46 807 793 162.1
B 3 64 573395 3799.73 806 788 150.7
B 10 245 36478 236.83 806 788 150.7
B 12 111 17758 112.61 806 788 150.7
C 3 233 398615 2214.05 780 788 179.7
C 3 9 61962 340.46 780 788 179.7
C 0 207 53401 292.81 780 788 179.7
D 10 70 178731 958.67 772 750 185.7
D 13 104 37035 195.44 772 750 185.7
D 2 234 18818 97.32 772 750 185.7

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