ASTROSAT CZTI

Data Quality Report

Orbit 53352

Creation date: 2025-08-08T22:42:26.319223
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/AS1C09_011T08_9000006492_53352cztM0_level2.fits modeM0/AS1C09_011T08_9000006492_53352cztM0_level2_quad_clean.evt
Size (bytes)881,098,56064,327,680
Size840.3 MB 61.3 MB
Events in quadrant A3,712,435607,134
Events in quadrant B4,178,706638,453
Events in quadrant C12,180,184263,259
Events in quadrant D12,066,5869,621

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151731
B0166841
C0404181
D0400791

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61481692.748861%
B61482704.391672%
C6147357358.125915%
D6147607298.779893%

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 7243 6148 129 129 1.78% 2.10%
B 7242 6148 196 196 2.71% 3.19%
C 7242 6147 3624 3624 50.04% 58.96%
D 7241 6146 2909 2909 40.17% 47.33%

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 15 174 370272 2273.56 653 637 162.6
A 11 3 198896 1219.45 653 637 162.6
A 3 14 95943 586.21 653 637 162.6
B 10 247 434173 3173.65 641 619 136.6
B 5 185 286987 2096.24 641 619 136.6
B 0 171 171491 1250.8 641 619 136.6
C 15 178 4470321 37685.14 432 429 118.6
C 1 241 3185703 26854.67 432 429 118.6
C 15 224 1239739 10448.48 432 429 118.6
D 2 62 11344020 333916.26 111 104 34.0
D 6 239 116761 3433.87 111 104 34.0
D 2 249 62445 1835.04 111 104 34.0

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