ASTROSAT CZTI

Data Quality Report

Orbit 46024

Creation date: 2024-06-27T23:18:52.087057
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_033T02_9000006154_46024cztM0_level2.fits modeM0/AS1A13_033T02_9000006154_46024cztM0_level2_quad_clean.evt
Size (bytes)660,202,560112,406,400
Size629.6 MB 107.2 MB
Events in quadrant A6,134,742779,450
Events in quadrant B10,732,492609,116
Events in quadrant C3,231,596816,676
Events in quadrant D3,819,197729,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226182
B0365502
C0141292
D0159142

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67212834.210683%
B6721239635.649457%
C6721510.758816%
D67221311.948825%

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 9086 6723 33 33 0.36% 0.49%
B 9086 6722 1849 1849 20.35% 27.51%
C 9086 6722 8 8 0.09% 0.12%
D 9087 6722 87 87 0.96% 1.29%

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 3004234 18144.19 800 783 165.5
A 13 248 22659 132.16 800 783 165.5
A 13 254 11059 62.08 800 783 165.5
B 3 112 7769776 54349.04 725 705 142.9
B 4 171 82780 574.16 725 705 142.9
B 12 111 17640 118.47 725 705 142.9
C 2 14 36308 186.92 811 817 189.9
C 0 239 11296 55.19 811 817 189.9
C 12 250 9874 47.7 811 817 189.9
D 1 52 257158 1278.49 799 776 200.5
D 7 204 210284 1044.75 799 776 200.5
D 2 249 157366 780.86 799 776 200.5

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