ASTROSAT CZTI

Data Quality Report

Orbit 11382

Creation date: 2024-06-27T16:12:08.104671
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_022T02_9000001662_11382cztM0_level2.evt modeM0/AS1A04_022T02_9000001662_11382cztM0_level2_quad_clean.evt
Size (bytes)475,185,60054,838,080
Size453.2 MB 52.3 MB
Events in quadrant A4,581,717307,698
Events in quadrant B2,859,923337,363
Events in quadrant C2,154,783363,749
Events in quadrant D4,457,309302,584

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169430
B0119110
C099670
D0166410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496678215.747080%
B49661793.604511%
C496600.000000%
D49664869.786549%

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 4966 4965 520 520 10.47% 10.47%
B 4966 4966 130 130 2.62% 2.62%
C 4966 4966 0 0 0.00% 0.00%
D 4966 4966 397 397 7.99% 7.99%

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 8 5 2536817 24090.67 509 498 105.3
A 13 210 40450 379.48 509 498 105.3
A 8 6 14085 129.05 509 498 105.3
B 4 239 678211 6407.32 544 531 105.8
B 0 214 18132 166.41 544 531 105.8
B 3 64 13175 119.55 544 531 105.8
C 8 128 8054 58.41 547 551 128.4
C 8 112 4827 33.29 547 551 128.4
C 13 61 3964 26.57 547 551 128.4
D 14 34 1003047 8084.71 508 494 124.0
D 1 52 760236 6126.65 508 494 124.0
D 10 253 345052 2778.56 508 494 124.0

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