ASTROSAT CZTI

Data Quality Report

Orbit 07381

Creation date: 2024-06-27T15:19:07.606279
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_117T01_9000001012_07381cztM0_level2.evt modeM0/AS1G06_117T01_9000001012_07381cztM0_level2_quad_clean.evt
Size (bytes)497,808,000103,322,880
Size474.7 MB 98.5 MB
Events in quadrant A3,755,508649,881
Events in quadrant B3,431,697685,478
Events in quadrant C3,329,278684,219
Events in quadrant D4,102,828640,327

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156713
B0145612
C0143122
D0169652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67332483.683351%
B6733931.381256%
C6733741.099064%
D67332163.208080%

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 9338 6735 131 131 1.40% 1.95%
B 9338 6734 1 1 0.01% 0.01%
C 9338 6735 0 0 0.00% 0.00%
D 9338 6735 97 97 1.04% 1.44%

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 464463 2729.66 841 824 169.9
A 14 111 46527 269.08 841 824 169.9
A 13 14 9555 51.4 841 824 169.9
B 0 214 42714 255.2 867 849 164.0
B 12 111 16388 94.72 867 849 164.0
B 11 111 13117 74.78 867 849 164.0
C 1 16 11162 52.71 850 854 195.6
C 13 61 6499 28.87 850 854 195.6
C 12 4 3150 11.74 850 854 195.6
D 13 137 413186 2013.45 832 808 204.8
D 13 105 325206 1583.88 832 808 204.8
D 2 14 69433 335.06 832 808 204.8

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