ASTROSAT CZTI

Data Quality Report

Orbit 15606

Creation date: 2024-06-27T17:11:03.250689
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_037T01_9000002312_15606cztM0_level2.evt modeM0/AS1A04_037T01_9000002312_15606cztM0_level2_quad_clean.evt
Size (bytes)485,164,80080,190,720
Size462.7 MB 76.5 MB
Events in quadrant A3,477,451491,094
Events in quadrant B3,956,072495,809
Events in quadrant C3,471,899476,997
Events in quadrant D3,310,001474,246

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147152
B0159131
C0145781
D0145341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70331492.118584%
B70331692.402957%
C70331502.132803%
D70331181.677805%

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 7739 7034 3 3 0.04% 0.04%
B 7739 7034 2 2 0.03% 0.03%
C 7739 7034 0 0 0.00% 0.00%
D 7739 7034 4 4 0.05% 0.06%

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 0 253 56808 315.66 876 857 177.2
A 4 2 28649 156.8 876 857 177.2
A 13 248 10087 52.07 876 857 177.2
B 4 251 430269 2554.27 866 843 168.1
B 4 173 34402 199.61 866 843 168.1
B 4 48 26774 154.24 866 843 168.1
C 14 238 128443 653.57 836 843 195.2
C 3 233 34243 171.08 836 843 195.2
C 7 247 31314 156.07 836 843 195.2
D 2 234 32493 152.86 857 833 207.1
D 15 145 16857 77.36 857 833 207.1
D 10 70 13900 63.09 857 833 207.1

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