ASTROSAT CZTI

Data Quality Report

Orbit 54119

Creation date: 2025-09-29T15:09:10.244283
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_012T01_9000006512_54119cztM0_level2.fits modeM0/AS1A14_012T01_9000006512_54119cztM0_level2_quad_clean.evt
Size (bytes)409,066,56089,130,240
Size390.1 MB 85.0 MB
Events in quadrant A3,195,753577,176
Events in quadrant B4,064,577617,284
Events in quadrant C2,692,017563,924
Events in quadrant D4,694,785496,510

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141801
B0165981
C0132521
D0186981

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63621422.232003%
B63622674.196793%
C6362540.848790%
D63624276.711726%

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 7177 6362 86 86 1.20% 1.35%
B 7177 6362 150 150 2.09% 2.36%
C 7177 6363 34 34 0.47% 0.53%
D 7177 6362 411 411 5.73% 6.46%

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 180497 1123.16 649 633 160.1
A 0 8 142030 882.96 649 633 160.1
A 3 130 75421 467.01 649 633 160.1
B 4 81 678990 4908.06 641 618 138.2
B 14 167 236172 1704.25 641 618 138.2
B 5 236 148710 1071.45 641 618 138.2
C 13 3 115938 654.28 631 624 176.2
C 12 252 27075 150.08 631 624 176.2
C 14 254 18933 103.88 631 624 176.2
D 7 70 1025958 5855.95 612 584 175.1
D 2 165 560829 3199.58 612 584 175.1
D 2 120 110340 626.82 612 584 175.1

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