ASTROSAT CZTI

Data Quality Report

Orbit 07429

Creation date: 2024-06-27T15:19:39.886311
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_150T04_9000001022_07429cztM0_level2.evt modeM0/AS1A02_150T04_9000001022_07429cztM0_level2_quad_clean.evt
Size (bytes)528,264,000100,036,800
Size503.8 MB 95.4 MB
Events in quadrant A3,530,001623,713
Events in quadrant B3,662,646637,380
Events in quadrant C4,203,359634,226
Events in quadrant D4,088,383607,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159273
B0161322
C0171972
D0176202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75791061.398601%
B75791532.018736%
C7579881.161103%
D7579981.293047%

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 8514 7584 3 3 0.04% 0.04%
B 8514 7584 2 2 0.02% 0.03%
C 8514 7584 1 1 0.01% 0.01%
D 8514 7584 22 22 0.26% 0.29%

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 4 2 30903 162.92 900 879 184.3
A 15 234 17302 89.11 900 879 184.3
A 13 248 12850 64.96 900 879 184.3
B 4 81 55166 303.83 913 889 178.6
B 0 214 54540 300.33 913 889 178.6
B 12 111 18728 99.86 913 889 178.6
C 9 68 732712 3523.02 882 887 207.7
C 14 205 9268 40.35 882 887 207.7
C 1 16 9006 39.09 882 887 207.7
D 13 169 305739 1412.03 873 847 215.9
D 8 195 201366 928.65 873 847 215.9
D 2 14 151340 696.97 873 847 215.9

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