ASTROSAT CZTI

Data Quality Report

Orbit 06510

Creation date: 2024-06-27T15:08:13.399376
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/AS1G06_136T02_9000000876_06510cztM0_level2.evt modeM0/AS1G06_136T02_9000000876_06510cztM0_level2_quad_clean.evt
Size (bytes)289,532,16055,702,080
Size276.1 MB 53.1 MB
Events in quadrant A2,060,494353,438
Events in quadrant B1,902,335365,403
Events in quadrant C1,861,584357,843
Events in quadrant D2,679,254335,843

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087652
B082871
C082501
D0105501

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3878310.799381%
B3878411.057246%
C3878471.211965%
D3878872.243424%

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 4978 3879 2 2 0.04% 0.05%
B 4978 3879 3 3 0.06% 0.08%
C 4978 3879 2 2 0.04% 0.05%
D 4978 3879 57 57 1.15% 1.47%

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 171204 1812.73 462 453 94.2
A 15 236 96683 1021.6 462 453 94.2
A 15 239 6059 59.51 462 453 94.2
B 0 228 23463 253.98 467 455 90.6
B 0 214 18830 202.83 467 455 90.6
B 4 81 14678 157.0 467 455 90.6
C 4 254 54450 513.34 450 453 105.2
C 1 16 46971 442.24 450 453 105.2
C 13 61 3452 28.51 450 453 105.2
D 2 152 846047 7628.85 445 430 110.8
D 2 14 48128 430.31 445 430 110.8
D 7 55 24601 218.06 445 430 110.8

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