ASTROSAT CZTI

Data Quality Report

Orbit 08696

Creation date: 2024-06-27T15:36:04.488749
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/AS1A03_052T01_9000001208_08696cztM0_level2.evt modeM0/AS1A03_052T01_9000001208_08696cztM0_level2_quad_clean.evt
Size (bytes)499,138,56088,375,680
Size476.0 MB 84.3 MB
Events in quadrant A3,585,954551,620
Events in quadrant B4,008,145550,445
Events in quadrant C3,344,751557,502
Events in quadrant D3,701,834529,425

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231
B0231
C0231
D0231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015412
B01548
C015410
D01544

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166071367
B0179301504
C0156861124
D0171701394

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6962941.350187%
B69592493.578100%
C7025420.597865%
D69751091.562724%

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 9801 7395 19 19 0.19% 0.26%
B 9801 7383 153 153 1.56% 2.07%
C 9801 7407 2 2 0.02% 0.03%
D 9801 7390 61 61 0.62% 0.83%

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 0 254 147240 838.53 856 837 174.6
A 13 251 111231 632.29 856 837 174.6
A 5 16 22384 123.41 856 837 174.6
B 10 16 593823 3675.05 851 833 161.4
B 0 230 33272 201.04 851 833 161.4
B 15 85 24559 147.04 851 833 161.4
C 14 64 17538 84.26 849 856 198.0
C 14 234 9422 43.27 849 856 198.0
C 13 61 6373 27.87 849 856 198.0
D 1 52 171591 842.95 836 814 202.6
D 2 152 121984 598.09 836 814 202.6
D 12 233 112035 548.98 836 814 202.6

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