ASTROSAT CZTI

Data Quality Report

Orbit 24060

Creation date: 2024-06-27T19:01:40.050825
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/AS1A07_165T01_9000003558_24060cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24060cztM0_level2_quad_clean.evt
Size (bytes)488,448,000133,490,880
Size465.8 MB 127.3 MB
Events in quadrant A3,193,358906,371
Events in quadrant B3,506,353914,912
Events in quadrant C4,242,756875,689
Events in quadrant D3,387,594871,420

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139281
B0147071
C0176461
D0145971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6813841.232937%
B68131502.201673%
C68141291.893161%
D6814771.130026%

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 7458 6814 0 0 0.00% 0.00%
B 7458 6813 5 5 0.07% 0.07%
C 7459 6815 0 0 0.00% 0.00%
D 7459 6815 26 26 0.35% 0.38%

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 2 250 11691 66.03 824 805 164.9
A 13 254 9557 53.08 824 805 164.9
A 6 16 7245 39.06 824 805 164.9
B 0 189 173009 1124.05 817 798 153.2
B 0 245 95622 618.93 817 798 153.2
B 12 111 17990 112.21 817 798 153.2
C 7 247 1046489 5784.27 784 788 180.8
C 14 238 125851 691.78 784 788 180.8
C 10 91 9145 46.23 784 788 180.8
D 1 52 142124 729.92 803 779 193.6
D 8 195 92913 475.79 803 779 193.6
D 2 234 35296 178.25 803 779 193.6

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