ASTROSAT CZTI

Data Quality Report

Orbit 07798

Creation date: 2024-06-27T15:24:08.577900
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/AS1G06_032T01_9000001074_07798cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07798cztM0_level2_quad_clean.evt
Size (bytes)437,411,520106,905,600
Size417.1 MB 102.0 MB
Events in quadrant A3,081,498698,946
Events in quadrant B3,241,739721,089
Events in quadrant C3,125,651686,774
Events in quadrant D3,332,930654,113

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138373
B0142662
C0139682
D0147912

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6838320.467973%
B6838460.672711%
C6838240.350980%
D6838500.731208%

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 7908 6838 0 0 0.00% 0.00%
B 7908 6838 3 3 0.04% 0.04%
C 7908 6838 0 0 0.00% 0.00%
D 7908 6838 26 26 0.33% 0.38%

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 15 239 45886 280.45 788 770 160.9
A 0 226 7450 41.52 788 770 160.9
A 12 194 6889 38.04 788 770 160.9
B 4 173 40351 261.31 804 786 151.4
B 0 214 31634 203.74 804 786 151.4
B 0 219 18603 117.67 804 786 151.4
C 9 243 82502 458.03 772 775 178.4
C 10 22 14761 78.38 772 775 178.4
C 1 16 11011 57.37 772 775 178.4
D 2 152 283580 1511.77 761 737 187.1
D 13 104 58060 306.39 761 737 187.1
D 2 14 50936 268.31 761 737 187.1

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