ASTROSAT CZTI

Data Quality Report

Orbit 29539

Creation date: 2024-06-27T20:05:11.933395
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_073T07_9000004254_29539cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29539cztM0_level2_quad_clean.evt
Size (bytes)661,343,04090,950,400
Size630.7 MB 86.7 MB
Events in quadrant A3,241,236585,575
Events in quadrant B3,335,284602,525
Events in quadrant C3,498,487573,665
Events in quadrant D9,506,996531,184

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139153
B0141602
C0144442
D0328972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6614420.635017%
B6614480.725733%
C66142603.931055%
D6614109716.586030%

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 7689 6615 0 0 0.00% 0.00%
B 7689 6615 1 1 0.01% 0.02%
C 7689 6615 0 0 0.00% 0.00%
D 7689 6615 1053 1053 13.69% 15.92%

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 11 29 15948 89.46 834 817 169.1
A 13 254 13049 72.32 834 817 169.1
A 3 137 8352 44.55 834 817 169.1
B 0 190 35084 213.64 835 815 160.4
B 12 111 19706 117.77 835 815 160.4
B 11 111 17673 105.1 835 815 160.4
C 14 238 210254 1116.87 800 805 187.5
C 14 254 111980 592.83 800 805 187.5
C 3 233 39539 206.55 800 805 187.5
D 8 195 5734269 31420.75 772 752 182.5
D 13 153 428448 2343.85 772 752 182.5
D 7 238 247593 1352.73 772 752 182.5

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