ASTROSAT CZTI

Data Quality Report

Orbit 28602

Creation date: 2024-06-27T19:53:53.578571
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/AS1A10_045T06_9000004108_28602cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28602cztM0_level2_quad_clean.evt
Size (bytes)504,357,12088,323,840
Size481.0 MB 84.2 MB
Events in quadrant A3,390,351569,181
Events in quadrant B3,398,522578,473
Events in quadrant C3,762,850560,711
Events in quadrant D4,308,119539,336

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136991
B0137201
C0150601
D0170171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6118931.520105%
B6118861.405688%
C61191943.170453%
D61191762.876287%

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 7408 6118 0 0 0.00% 0.00%
B 7408 6118 0 0 0.00% 0.00%
C 7409 6119 42 42 0.57% 0.69%
D 7409 6119 106 106 1.43% 1.73%

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 15 174 17967 98.16 873 857 174.3
A 13 254 10062 52.81 873 857 174.3
A 3 137 7591 38.63 873 857 174.3
B 10 245 33699 204.62 854 836 160.6
B 12 111 18202 108.13 854 836 160.6
B 11 111 17078 101.13 854 836 160.6
C 15 208 282040 1446.12 837 847 194.4
C 14 238 136924 699.81 837 847 194.4
C 3 233 41325 208.17 837 847 194.4
D 1 52 515711 2599.71 847 831 198.1
D 8 195 384838 1938.91 847 831 198.1
D 13 104 87442 437.31 847 831 198.1

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