ASTROSAT CZTI

Data Quality Report

Orbit 18353

Creation date: 2024-06-27T17:48:43.893502
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/AS1A06_006T01_9000002720_18353cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18353cztM0_level2_quad_clean.evt
Size (bytes)449,536,32056,154,240
Size428.7 MB 53.6 MB
Events in quadrant A2,975,783327,471
Events in quadrant B3,171,615332,237
Events in quadrant C3,630,875318,558
Events in quadrant D3,440,972315,010

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120881
B0127401
C0142631
D0137841

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5812270.464556%
B5813400.688113%
C58121943.337922%
D5812951.634549%

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 7142 5813 0 0 0.00% 0.00%
B 7143 5814 1 1 0.01% 0.02%
C 7142 5813 63 63 0.88% 1.08%
D 7142 5813 23 23 0.32% 0.40%

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 0 226 6850 39.18 773 759 155.5
A 12 194 5652 31.47 773 759 155.5
A 3 137 5223 28.71 773 759 155.5
B 7 220 84510 567.91 781 763 147.5
B 12 111 16027 103.51 781 763 147.5
B 0 198 15342 98.86 781 763 147.5
C 4 254 478410 2787.89 745 754 171.3
C 14 238 117140 679.3 745 754 171.3
C 0 207 98350 569.63 745 754 171.3
D 1 52 488913 2691.57 751 730 181.4
D 11 176 45599 247.38 751 730 181.4
D 2 234 25636 137.32 751 730 181.4

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