ASTROSAT CZTI

Data Quality Report

Orbit 20713

Creation date: 2024-06-27T18:18:40.658506
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/AS1A05_165T07_9000003062_20713cztM0_level2.evt modeM0/AS1A05_165T07_9000003062_20713cztM0_level2_quad_clean.evt
Size (bytes)480,792,960109,408,320
Size458.5 MB 104.3 MB
Events in quadrant A3,223,133758,250
Events in quadrant B3,590,808734,348
Events in quadrant C3,233,232700,530
Events in quadrant D4,100,273695,300

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133321
B0144921
C0134241
D0162481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60881041.708279%
B60881702.792378%
C60881352.217477%
D60893115.107571%

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 7398 6089 1 1 0.01% 0.02%
B 7398 6089 40 40 0.54% 0.66%
C 7398 6089 0 0 0.00% 0.00%
D 7399 6090 182 182 2.46% 2.99%

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 9 143 8263 44.63 836 822 166.7
A 0 226 7472 39.89 836 822 166.7
A 3 137 6243 32.51 836 822 166.7
B 7 220 294314 1941.33 806 788 151.2
B 0 229 51306 334.12 806 788 151.2
B 3 64 39584 256.59 806 788 151.2
C 14 238 125075 701.46 772 779 177.2
C 7 247 82611 461.81 772 779 177.2
C 3 233 9329 48.25 772 779 177.2
D 5 222 456908 2396.28 798 776 190.4
D 1 52 382352 2004.6 798 776 190.4
D 12 233 161813 846.0 798 776 190.4

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