ASTROSAT CZTI

Data Quality Report

Orbit 55113

Creation date: 2025-12-05T11:42:51.120851
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/AS1A14_022T16_9000006532_55113cztM0_level2.fits modeM0/AS1A14_022T16_9000006532_55113cztM0_level2_quad_clean.evt
Size (bytes)365,284,800100,437,120
Size348.4 MB 95.8 MB
Events in quadrant A3,333,722647,433
Events in quadrant B2,905,209712,768
Events in quadrant C3,363,784623,889
Events in quadrant D3,388,513582,920

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153020
B0139960
C0151110
D0154401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68071702.497429%
B6807420.617012%
C6807520.763919%
D6806841.234205%

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 7902 6808 89 89 1.13% 1.31%
B 7902 6808 0 0 0.00% 0.00%
C 7902 6808 42 42 0.53% 0.62%
D 7901 6807 68 68 0.86% 1.00%

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 0 8 488287 2762.94 715 698 176.5
A 3 61 24532 135.06 715 698 176.5
A 4 3 16216 87.93 715 698 176.5
B 0 182 24972 159.61 715 688 152.1
B 10 247 22979 146.51 715 688 152.1
B 12 111 18742 118.66 715 688 152.1
C 3 242 186011 974.0 695 690 190.3
C 10 22 108840 568.41 695 690 190.3
C 6 223 91262 476.02 695 690 190.3
D 15 94 180465 920.82 689 657 195.3
D 3 176 160791 820.06 689 657 195.3
D 2 249 84288 428.28 689 657 195.3

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