ASTROSAT CZTI

Data Quality Report

Orbit 29096

Creation date: 2024-06-27T20:00:08.829053
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/AS1A10_063T01_9000004182_29096cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29096cztM0_level2_quad_clean.evt
Size (bytes)174,758,40025,755,840
Size166.7 MB 24.6 MB
Events in quadrant A1,077,201165,088
Events in quadrant B1,120,939169,764
Events in quadrant C1,113,666158,631
Events in quadrant D1,851,281149,118

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A043451
B044911
C044651
D068651

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1872834.433761%
B18721015.395299%
C18721226.517094%
D187222411.965812%

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 3116 1872 0 0 0.00% 0.00%
B 3117 1873 1 1 0.03% 0.05%
C 3117 1873 2 2 0.06% 0.11%
D 3117 1873 213 213 6.83% 11.37%

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 6 16 8837 150.64 276 271 56.9
A 13 254 3510 56.96 276 271 56.9
A 3 137 2771 43.96 276 271 56.9
B 0 183 9323 164.39 276 270 55.1
B 0 190 7435 130.11 276 270 55.1
B 12 111 6432 111.89 276 270 55.1
C 14 238 42488 667.32 264 265 63.3
C 3 233 26526 415.05 264 265 63.3
C 2 16 9464 145.39 264 265 63.3
D 8 195 673852 10498.44 263 257 64.2
D 1 52 135791 2112.39 263 257 64.2
D 2 250 31383 485.12 263 257 64.2

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