ASTROSAT CZTI

Data Quality Report

Orbit 37004

Creation date: 2024-06-27T21:34:08.637696
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/AS1C07_015T01_9000005256_37004cztM0_level2.evt modeM0/AS1C07_015T01_9000005256_37004cztM0_level2_quad_clean.evt
Size (bytes)100,074,24025,272,000
Size95.4 MB 24.1 MB
Events in quadrant A741,315165,219
Events in quadrant B692,351166,380
Events in quadrant C758,384163,834
Events in quadrant D735,247159,686

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031062
B030071
C031611
D032341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A147620.135501%
B147620.135501%
C147690.609756%
D1476120.813008%

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 2818 1477 0 0 0.00% 0.00%
B 2818 1477 0 0 0.00% 0.00%
C 2818 1477 7 7 0.25% 0.47%
D 2818 1477 8 8 0.28% 0.54%

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 10 83 88019 2462.94 166 163 35.7
A 13 6 2901 76.76 166 163 35.7
A 7 3 2817 74.4 166 163 35.7
B 0 221 15811 456.18 166 162 34.3
B 0 213 11039 317.07 166 162 34.3
B 0 190 4190 117.42 166 162 34.3
C 15 214 66413 1660.01 165 165 39.9
C 0 10 39869 994.88 165 165 39.9
C 14 254 4299 103.59 165 165 39.9
D 1 52 61462 1496.11 164 159 41.0
D 2 153 23635 572.94 164 159 41.0
D 2 250 15266 368.69 164 159 41.0

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