ASTROSAT CZTI

Data Quality Report

Orbit 05962

Creation date: 2024-06-27T15:01:14.628560
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_086T01_9000000774_05962cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05962cztM0_level2_quad_clean.evt
Size (bytes)465,148,80089,308,800
Size443.6 MB 85.2 MB
Events in quadrant A2,177,224617,266
Events in quadrant B2,278,898638,152
Events in quadrant C7,110,304515,269
Events in quadrant D2,182,745584,768

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100922
B0102511
C0245451
D0103601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4966190.382602%
B4966180.362465%
C4966161732.561418%
D4966220.443012%

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 6236 4967 2 2 0.03% 0.04%
B 6236 4967 0 0 0.00% 0.00%
C 6236 4966 1337 1337 21.44% 26.92%
D 6236 4967 8 8 0.13% 0.16%

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 13 251 9523 78.9 560 549 113.7
A 0 226 5358 42.28 560 549 113.7
A 12 194 5343 42.15 560 549 113.7
B 7 221 24967 226.02 572 560 108.0
B 4 81 18034 161.82 572 560 108.0
B 12 111 10204 89.31 572 560 108.0
C 9 247 5224240 47164.51 477 479 110.8
C 8 128 9052 77.4 477 479 110.8
C 9 54 4845 39.42 477 479 110.8
D 2 206 56007 422.7 540 524 131.3
D 1 20 34091 255.73 540 524 131.3
D 8 195 31132 233.19 540 524 131.3

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