ASTROSAT CZTI

Data Quality Report

Orbit 33559

Creation date: 2024-06-27T20:50:09.646644
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/AS1A11_060T01_9000004808_33559cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33559cztM0_level2_quad_clean.evt
Size (bytes)543,312,00072,023,040
Size518.1 MB 68.7 MB
Events in quadrant A2,719,791453,763
Events in quadrant B4,715,550429,972
Events in quadrant C3,935,233448,291
Events in quadrant D4,676,538428,709

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120613
B0178172
C0155592
D0179212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A601350.083153%
B601361410.211209%
C6013871.446865%
D6013991.646433%

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 8669 6015 0 0 0.00% 0.00%
B 8669 6015 501 501 5.78% 8.33%
C 8669 6015 56 56 0.65% 0.93%
D 8669 6015 92 92 1.06% 1.53%

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 13 254 9568 62.95 701 685 141.1
A 3 137 7235 46.42 701 685 141.1
A 10 83 6548 41.55 701 685 141.1
B 5 172 1701525 13159.95 666 649 129.2
B 4 251 265328 2047.86 666 649 129.2
B 5 255 59576 455.93 666 649 129.2
C 3 233 746250 4701.71 681 686 158.6
C 15 214 257190 1617.58 681 686 158.6
C 0 10 173967 1092.75 681 686 158.6
D 8 195 1314243 7818.97 681 661 168.0
D 2 250 233560 1386.31 681 661 168.0
D 15 0 196670 1166.72 681 661 168.0

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