ASTROSAT CZTI

Data Quality Report

Orbit 13443

Creation date: 2024-06-27T16:40:51.480296
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/AS1A04_103T01_9000001988_13443cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13443cztM0_level2_quad_clean.evt
Size (bytes)425,689,92068,374,080
Size406.0 MB 65.2 MB
Events in quadrant A2,959,731410,657
Events in quadrant B3,075,552419,691
Events in quadrant C2,941,768410,255
Events in quadrant D3,488,551391,842

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129362
B0131321
C0128951
D0146551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6271440.701642%
B6271490.781375%
C6271300.478393%
D6271711.132196%

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 7322 6272 0 0 0.00% 0.00%
B 7322 6272 3 3 0.04% 0.05%
C 7322 6272 1 1 0.01% 0.02%
D 7322 6272 44 44 0.60% 0.70%

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 15 69 15018 92.18 762 746 154.8
A 1 162 10472 62.82 762 746 154.8
A 0 226 6756 38.82 762 746 154.8
B 0 214 41540 283.24 760 742 144.0
B 3 64 25183 169.68 760 742 144.0
B 10 244 19108 127.5 760 742 144.0
C 3 233 30294 171.84 745 750 171.9
C 13 61 5250 26.17 745 750 171.9
C 14 234 3366 15.22 745 750 171.9
D 13 249 661706 3728.98 740 718 177.3
D 2 234 22036 120.27 740 718 177.3
D 13 172 15263 82.06 740 718 177.3

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