ASTROSAT CZTI

Data Quality Report

Orbit 55132

Creation date: 2025-12-06T19:23:08.978595
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_55132cztM0_level2.fits modeM0/AS1A14_022T16_9000006532_55132cztM0_level2_quad_clean.evt
Size (bytes)470,975,040102,427,200
Size449.2 MB 97.7 MB
Events in quadrant A5,801,148613,789
Events in quadrant B3,360,799731,053
Events in quadrant C3,482,352639,761
Events in quadrant D4,215,333602,793

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225710
B0156425
C01603110
D0178885

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A738689412.103981%
B7382500.677323%
C7380771.043360%
D73861241.678852%

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 7386 7386 698 698 9.45% 9.45%
B 7386 7385 24 24 0.32% 0.32%
C 7386 7383 52 52 0.70% 0.70%
D 7387 7387 108 108 1.46% 1.46%

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 7 190 2371890 13088.65 730 711 181.2
A 0 8 318481 1754.06 730 711 181.2
A 15 32 179204 985.26 730 711 181.2
B 4 81 90213 542.63 760 733 164.9
B 2 249 88672 533.28 760 733 164.9
B 5 185 56207 336.41 760 733 164.9
C 6 223 247950 1215.53 744 739 203.4
C 13 3 99503 485.62 744 739 203.4
C 1 16 69229 336.76 744 739 203.4
D 11 129 674655 3218.79 743 709 209.4
D 15 94 335418 1598.58 743 709 209.4
D 7 129 81423 385.49 743 709 209.4

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