ASTROSAT CZTI

Data Quality Report

Orbit 45196

Creation date: 2024-06-27T23:10:27.986324
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/AS1A13_049T06_9000006054_45196cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45196cztM0_level2_quad_clean.evt
Size (bytes)1,099,307,520253,877,760
Size1.0 GB 242.1 MB
Events in quadrant A12,830,2901,671,985
Events in quadrant B8,464,8631,755,404
Events in quadrant C7,181,7921,691,982
Events in quadrant D10,992,3101,475,359

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0509313
B0359673
C0327893
D04381614

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03240
B03240
C03240
D03240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158224162.629250%
B158222331.472633%
C15823420.265436%
D158197314.621025%

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 18732 15825 119 119 0.64% 0.75%
B 18732 15825 98 98 0.52% 0.62%
C 18733 15826 18 18 0.10% 0.11%
D 18733 15823 662 662 3.53% 4.18%

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 10 83 5540339 15585.79 1731 1695 355.4
A 7 192 373220 1045.47 1731 1695 355.4
A 15 174 136227 378.57 1731 1695 355.4
B 4 170 781613 2283.82 1749 1692 341.5
B 3 112 315694 919.48 1749 1692 341.5
B 5 32 86336 247.86 1749 1692 341.5
C 12 2 183853 448.79 1736 1745 405.8
C 3 233 114856 278.75 1736 1745 405.8
C 2 14 64948 155.76 1736 1745 405.8
D 13 249 2090404 4915.7 1690 1643 424.9
D 1 47 743355 1745.55 1690 1643 424.9
D 5 235 456491 1070.44 1690 1643 424.9

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