ASTROSAT CZTI

Data Quality Report

Orbit 14131

Creation date: 2024-06-27T16:50:46.266632
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_218T04_9000002086_14131cztM0_level2.evt modeM0/AS1A04_218T04_9000002086_14131cztM0_level2_quad_clean.evt
Size (bytes)380,784,96065,629,440
Size363.1 MB 62.6 MB
Events in quadrant A2,448,356406,175
Events in quadrant B2,612,075404,499
Events in quadrant C2,672,885416,899
Events in quadrant D3,448,143398,566

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107342
B0111641
C0110231
D0136401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5149440.854535%
B51491072.078073%
C5149460.893377%
D51492084.039619%

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 5380 5151 0 0 0.00% 0.00%
B 5380 5151 0 0 0.00% 0.00%
C 5380 5151 2 2 0.04% 0.04%
D 5380 5151 79 79 1.47% 1.53%

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 0 226 5586 38.06 635 621 130.5
A 12 194 4771 31.81 635 621 130.5
A 3 137 4191 27.36 635 621 130.5
B 0 85 38833 308.13 632 614 124.0
B 0 189 37686 298.88 632 614 124.0
B 3 209 23888 187.64 632 614 124.0
C 3 233 242865 1652.14 619 621 146.6
C 10 22 11217 72.27 619 621 146.6
C 0 207 5163 30.98 619 621 146.6
D 1 52 424477 2890.03 607 591 146.7
D 8 195 371537 2529.09 607 591 146.7
D 7 80 187928 1277.25 607 591 146.7

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