ASTROSAT CZTI

Data Quality Report

Orbit 49686

Creation date: 2024-12-11T08:13:12.102965
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/AS1T05_233T01_9000006438_49686cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49686cztM0_level2_quad_clean.evt
Size (bytes)1,246,268,16046,177,920
Size1.2 GB 44.0 MB
Events in quadrant A18,772,507114,695
Events in quadrant B5,942,575699,761
Events in quadrant C4,235,8322,609
Events in quadrant D16,619,08866,214

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0607440
B0226960
C0177910
D0543370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72347234100.000000%
B72347189.925353%
C72357235100.000000%
D72357235100.000000%

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 7233 7233 7095 7095 98.09% 98.09%
B 7234 7234 499 499 6.90% 6.90%
C 7234 7234 0 0 0.00% 0.00%
D 7234 7234 6010 6010 83.08% 83.08%

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 99 5722227 89991.11 151 142 63.6
A 10 83 2924339 45988.78 151 142 63.6
A 0 98 2835864 44597.34 151 142 63.6
B 3 232 1204776 7679.16 732 709 156.8
B 10 44 367235 2337.59 732 709 156.8
B 4 206 244460 1554.57 732 709 156.8
C 15 190 731583 87993.13 8 7 8.3
C 4 210 712617 85711.92 8 7 8.3
C 15 180 464575 55877.71 8 7 8.3
D 15 184 3505389 57571.92 104 96 60.9
D 7 60 1619228 26593.08 104 96 60.9
D 12 191 1584509 26022.84 104 96 60.9

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