ASTROSAT CZTI

Data Quality Report

Orbit 05007

Creation date: 2024-06-27T14:50:04.252674
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/AS1T01_132T01_9000000636_05007cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05007cztM0_level2_quad_clean.evt
Size (bytes)2,022,701,760290,609,280
Size1.9 GB 277.1 MB
Events in quadrant A13,011,5691,747,248
Events in quadrant B15,172,6831,755,904
Events in quadrant C12,693,4661,748,349
Events in quadrant D18,491,7381,626,569

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05680
B05680
C05680
D05680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0577509
B0638945
C0570675
D07436212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A279702450.875939%
B279723771.347776%
C279721660.593451%
D2797018386.571326%

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 46969 27978 27 27 0.06% 0.10%
B 46971 27980 52 52 0.11% 0.19%
C 46971 27980 3 3 0.01% 0.01%
D 46971 27978 1311 1311 2.79% 4.69%

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 50 120709 176.6 3302 3225 665.3
A 13 251 73384 105.46 3302 3225 665.3
A 8 15 40919 56.66 3302 3225 665.3
B 8 3 820876 1309.11 3313 3236 624.6
B 15 204 632094 1006.86 3313 3236 624.6
B 0 219 591239 941.44 3313 3236 624.6
C 1 16 62868 80.14 3222 3235 744.1
C 13 61 26143 30.79 3222 3235 744.1
C 8 128 20832 23.65 3222 3235 744.1
D 13 235 2796782 3659.28 3154 3060 763.5
D 2 33 1461860 1910.77 3154 3060 763.5
D 2 136 774183 1010.03 3154 3060 763.5

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