ASTROSAT CZTI

Data Quality Report

Orbit 54333

Creation date: 2025-10-14T00:30:47.951998
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_126T15_9000006516_54333cztM0_level2.fits modeM0/AS1A14_126T15_9000006516_54333cztM0_level2_quad_clean.evt
Size (bytes)681,082,56093,441,600
Size649.5 MB 89.1 MB
Events in quadrant A4,218,553656,022
Events in quadrant B3,432,534718,804
Events in quadrant C3,797,046628,889
Events in quadrant D13,209,884329,063

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176890
B0152260
C0164870
D0440400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71282914.082492%
B7128290.406846%
C71291141.599102%
D7129359450.413803%

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 7128 7128 176 176 2.47% 2.47%
B 7128 7128 17 17 0.24% 0.24%
C 7129 7129 102 102 1.43% 1.43%
D 7128 7128 3400 3400 47.70% 47.70%

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 7 14 794587 4334.26 740 722 183.2
A 3 110 114945 623.62 740 722 183.2
A 0 8 104452 566.33 740 722 183.2
B 10 247 110759 690.13 739 711 159.5
B 0 213 84565 525.87 739 711 159.5
B 0 171 81450 506.33 739 711 159.5
C 14 254 487934 2450.25 724 717 198.8
C 15 157 116132 580.43 724 717 198.8
C 12 2 112361 561.46 724 717 198.8
D 15 108 7904818 50545.43 551 525 156.4
D 10 1 2610566 16690.38 551 525 156.4
D 8 176 171870 1095.7 551 525 156.4

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