ASTROSAT CZTI

Data Quality Report

Orbit 29310

Creation date: 2024-06-27T20:02:38.264412
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/AS1A10_050T01_9000004212_29310cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29310cztM0_level2_quad_clean.evt
Size (bytes)754,611,84083,802,240
Size719.7 MB 79.9 MB
Events in quadrant A3,355,573552,003
Events in quadrant B5,411,621546,471
Events in quadrant C6,957,548527,021
Events in quadrant D6,740,770508,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133751
B0199281
C0247691
D0240521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57621091.891704%
B57635769.994794%
C576382114.246052%
D5763113219.642547%

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 6987 5763 77 77 1.10% 1.34%
B 6988 5764 378 378 5.41% 6.56%
C 6988 5764 359 359 5.14% 6.23%
D 6988 5764 848 848 12.14% 14.71%

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 0 13 406039 2679.38 762 747 151.3
A 13 254 10977 67.63 762 747 151.3
A 3 137 6588 38.61 762 747 151.3
B 5 255 2168439 15934.49 731 716 136.0
B 10 245 240488 1762.52 731 716 136.0
B 0 190 87957 641.29 731 716 136.0
C 3 233 4040742 24475.77 713 721 165.1
C 14 238 113282 681.93 713 721 165.1
C 2 114 13520 77.54 713 721 165.1
D 1 52 3342257 20369.51 693 677 164.0
D 8 195 296566 1803.67 693 677 164.0
D 13 153 144276 875.35 693 677 164.0

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