ASTROSAT CZTI

Data Quality Report

Orbit 06496

Creation date: 2024-06-27T15:07:55.215053
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_065T01_9000000868_06496cztM0_level2.evt modeM0/AS1G06_065T01_9000000868_06496cztM0_level2_quad_clean.evt
Size (bytes)443,672,640127,483,200
Size423.1 MB 121.6 MB
Events in quadrant A3,155,597880,496
Events in quadrant B3,135,144854,442
Events in quadrant C2,893,843834,839
Events in quadrant D3,813,231841,053

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140752
B0138832
C0132542
D0157622

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6461140.216685%
B6461210.325027%
C646190.139297%
D6461380.588144%

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 7531 6462 0 0 0.00% 0.00%
B 7531 6462 9 9 0.12% 0.14%
C 7531 6462 1 1 0.01% 0.02%
D 7531 6462 15 15 0.20% 0.23%

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 15 234 112090 696.07 775 761 159.9
A 15 236 27498 167.17 775 761 159.9
A 13 14 15719 93.52 775 761 159.9
B 4 81 50958 345.26 760 743 145.4
B 0 219 42499 287.1 760 743 145.4
B 4 172 28506 190.89 760 743 145.4
C 1 16 10358 56.36 733 739 170.7
C 12 4 8144 43.38 733 739 170.7
C 9 54 6758 35.26 733 739 170.7
D 8 195 461887 2470.99 747 726 186.6
D 2 152 294134 1572.14 747 726 186.6
D 2 136 79581 422.52 747 726 186.6

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