ASTROSAT CZTI

Data Quality Report

Orbit 54432

Creation date: 2025-10-20T16:02:20.152551
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_126T19_9000006518_54432cztM0_level2.fits modeM0/AS1A14_126T19_9000006518_54432cztM0_level2_quad_clean.evt
Size (bytes)632,819,52081,187,200
Size603.5 MB 77.4 MB
Events in quadrant A2,815,952605,729
Events in quadrant B2,930,052645,051
Events in quadrant C3,805,485560,806
Events in quadrant D13,360,522187,427

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135371
B0138011
C0164021
D0441983

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65821492.263750%
B65831892.871031%
C65833976.030685%
D6582457669.522941%

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 7007 6583 0 0 0.00% 0.00%
B 7008 6584 5 5 0.07% 0.08%
C 7008 6584 328 328 4.68% 4.98%
D 7007 6583 3658 3658 52.20% 55.57%

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 4 3 31211 174.76 708 688 174.7
A 13 254 17019 93.51 708 688 174.7
A 0 8 10378 55.48 708 688 174.7
B 0 213 109282 727.62 690 663 149.3
B 10 247 38800 255.47 690 663 149.3
B 12 111 18110 116.87 690 663 149.3
C 1 241 649622 3524.27 666 657 184.1
C 5 10 224235 1214.16 666 657 184.1
C 14 254 142090 768.07 666 657 184.1
D 8 176 8667155 79291.74 384 366 109.3
D 7 70 2801069 25623.4 384 366 109.3
D 8 160 95752 872.68 384 366 109.3

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