ASTROSAT CZTI

Data Quality Report

Orbit 44152

Creation date: 2024-06-27T22:59:48.453194
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/AS1A13_080T05_9000005952_44152cztM0_level2.fits modeM0/AS1A13_080T05_9000005952_44152cztM0_level2_quad_clean.evt
Size (bytes)804,931,200157,052,160
Size767.6 MB 149.8 MB
Events in quadrant A8,165,3061,045,032
Events in quadrant B6,167,9141,097,511
Events in quadrant C6,340,500998,629
Events in quadrant D8,339,316913,444

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02040
B02040
C02040
D02040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0316452
B0253832
C0257072
D0319792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A101115815.746217%
B101122922.887658%
C101126816.734573%
D101128458.356408%

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 12001 10113 341 341 2.84% 3.37%
B 12002 10114 91 91 0.76% 0.90%
C 12002 10114 425 425 3.54% 4.20%
D 12002 10114 639 639 5.32% 6.32%

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 2301783 10208.82 1092 1069 225.4
A 15 223 1399521 6205.27 1092 1069 225.4
A 14 238 89301 391.51 1092 1069 225.4
B 0 200 470090 2195.49 1103 1070 213.6
B 15 36 238396 1110.93 1103 1070 213.6
B 0 219 234986 1094.96 1103 1070 213.6
C 15 158 1277268 5281.02 1039 1043 241.7
C 3 233 536239 2214.64 1039 1043 241.7
C 14 254 179396 738.03 1039 1043 241.7
D 1 52 2212998 8324.04 1047 1011 265.7
D 2 249 681775 2561.82 1047 1011 265.7
D 13 171 288768 1082.87 1047 1011 265.7

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