ASTROSAT CZTI

Data Quality Report

Orbit 05864

Creation date: 2024-06-27T15:00:10.562956
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/AS1G06_033T01_9000000760_05864cztM0_level2.evt modeM0/AS1G06_033T01_9000000760_05864cztM0_level2_quad_clean.evt
Size (bytes)520,136,64075,864,960
Size496.0 MB 72.4 MB
Events in quadrant A3,269,005464,311
Events in quadrant B3,488,712465,855
Events in quadrant C3,220,667463,880
Events in quadrant D5,310,121427,361

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01382
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141925
B01459111
C0141622
D02026513

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68311752.561850%
B68282103.075571%
C68321321.932084%
D683084312.342606%

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 7697 6832 0 0 0.00% 0.00%
B 7697 6833 5 5 0.06% 0.07%
C 7697 6833 1 1 0.01% 0.01%
D 7697 6832 650 650 8.44% 9.51%

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 7 16 8377 43.45 846 830 173.7
A 12 194 8160 42.2 846 830 173.7
A 0 226 8049 41.56 846 830 173.7
B 15 204 96657 579.87 850 832 165.3
B 15 85 31777 187.26 850 832 165.3
B 0 214 21190 123.19 850 832 165.3
C 14 67 12537 61.55 816 821 190.4
C 13 61 6525 29.96 816 821 190.4
C 8 128 6306 28.81 816 821 190.4
D 1 20 1940938 10145.25 770 744 191.2
D 2 152 255615 1332.72 770 744 191.2
D 2 63 51630 266.08 770 744 191.2

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