ASTROSAT CZTI

Data Quality Report

Orbit 45396

Creation date: 2024-06-27T23:11:00.143070
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/AS1A13_049T07_9000006056_45396cztM0_level2.fits modeM0/AS1A13_049T07_9000006056_45396cztM0_level2_quad_clean.evt
Size (bytes)473,578,56098,303,040
Size451.6 MB 93.7 MB
Events in quadrant A5,245,242658,122
Events in quadrant B2,957,810677,727
Events in quadrant C3,162,586646,893
Events in quadrant D5,682,963560,909

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195512
B0132031
C0138721
D0211951

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62071302.094410%
B6207560.902207%
C6207971.562752%
D62076119.843725%

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 6942 6207 5 5 0.07% 0.08%
B 6942 6207 10 10 0.14% 0.16%
C 6942 6208 69 69 0.99% 1.11%
D 6942 6207 541 541 7.79% 8.72%

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 10 83 2547243 17947.04 681 665 141.9
A 10 248 25457 174.72 681 665 141.9
A 9 191 16919 114.55 681 665 141.9
B 4 67 114753 843.91 681 662 135.2
B 0 186 25783 185.81 681 662 135.2
B 3 112 25204 181.53 681 662 135.2
C 14 254 253372 1592.63 669 671 158.7
C 0 239 149508 938.03 669 671 158.7
C 12 2 61431 382.93 669 671 158.7
D 13 249 1062997 6454.09 655 637 164.6
D 1 52 1020658 6196.88 655 637 164.6
D 2 249 642592 3900.03 655 637 164.6

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