ASTROSAT CZTI

Data Quality Report

Orbit 10035

Creation date: 2024-06-27T15:54:01.063589
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/AS1G07_022T02_9000001434_10035cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10035cztM0_level2_quad_clean.evt
Size (bytes)2,053,082,880370,137,600
Size1.9 GB 353.0 MB
Events in quadrant A13,230,6652,321,587
Events in quadrant B13,728,5542,372,775
Events in quadrant C12,527,5712,373,319
Events in quadrant D20,769,7042,186,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A059417102
B060496108
C05799883
D081149179

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0450
B0450
C0450
D0460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05820
B05820
C05822
D05822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A284561520.534158%
B284512140.752170%
C28463580.203773%
D2844911774.137228%

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 32690 28505 24 24 0.07% 0.08%
B 32690 28504 29 29 0.09% 0.10%
C 32690 28504 0 0 0.00% 0.00%
D 32690 28499 1059 1059 3.24% 3.72%

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 8 15 423259 641.7 3269 3200 654.6
A 15 174 155015 231.92 3269 3200 654.6
A 8 5 38223 53.5 3269 3200 654.6
B 4 81 487309 775.97 3314 3235 623.8
B 4 239 168234 264.49 3314 3235 623.8
B 0 214 124633 194.6 3314 3235 623.8
C 13 61 23828 27.85 3207 3222 739.9
C 8 222 15180 16.16 3207 3222 739.9
C 14 67 12727 12.85 3207 3222 739.9
D 2 16 5252880 6688.41 3112 3030 784.9
D 8 195 1440237 1831.03 3112 3030 784.9
D 1 52 848607 1077.28 3112 3030 784.9

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