ASTROSAT CZTI

Data Quality Report

Orbit 29978

Creation date: 2024-06-27T20:09:25.970142
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_053T11_9000004302_29978cztM0_level2.evt modeM0/AS1A10_053T11_9000004302_29978cztM0_level2_quad_clean.evt
Size (bytes)494,144,64077,008,320
Size471.3 MB 73.4 MB
Events in quadrant A3,220,907498,942
Events in quadrant B4,753,247494,802
Events in quadrant C3,082,529469,363
Events in quadrant D3,523,397471,270

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128521
B0175461
C0123801
D0138061

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5682861.513552%
B56831302.287524%
C56831152.023579%
D56831212.129157%

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 6982 5683 9 9 0.13% 0.16%
B 6983 5684 2 2 0.03% 0.04%
C 6983 5684 0 0 0.00% 0.00%
D 6983 5684 57 57 0.82% 1.00%

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 15 174 101291 640.91 797 783 156.8
A 3 1 35954 224.28 797 783 156.8
A 8 192 11868 70.69 797 783 156.8
B 6 159 1622491 11245.82 770 755 144.2
B 6 36 72801 499.6 770 755 144.2
B 12 111 16768 111.04 770 755 144.2
C 14 238 121644 701.79 744 752 172.3
C 3 233 46393 264.95 744 752 172.3
C 2 114 13709 75.22 744 752 172.3
D 8 195 245776 1351.07 770 752 181.4
D 12 233 242839 1334.87 770 752 181.4
D 2 250 68765 375.02 770 752 181.4

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