ASTROSAT CZTI

Data Quality Report

Orbit 30325

Creation date: 2024-06-27T20:13:43.719321
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_071T29_9000004358_30325cztM0_level2.evt modeM0/AS1A10_071T29_9000004358_30325cztM0_level2_quad_clean.evt
Size (bytes)533,796,48095,402,880
Size509.1 MB 91.0 MB
Events in quadrant A3,342,237632,274
Events in quadrant B5,660,925624,345
Events in quadrant C3,391,739613,080
Events in quadrant D3,359,056594,566

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138152
B0207282
C0138702
D0137682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6094681.115852%
B60933736.121779%
C60931011.657640%
D6093360.590842%

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 7469 6095 6 6 0.08% 0.10%
B 7468 6093 227 227 3.04% 3.73%
C 7468 6094 2 2 0.03% 0.03%
D 7468 6094 6 6 0.08% 0.10%

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 5 203 56904 342.68 828 815 163.7
A 14 239 56069 337.58 828 815 163.7
A 8 192 28229 167.49 828 815 163.7
B 6 159 1688866 11156.83 805 787 151.3
B 6 36 804198 5309.89 805 787 151.3
B 12 111 17897 113.08 805 787 151.3
C 14 238 137787 741.2 795 802 184.8
C 3 233 111938 601.34 795 802 184.8
C 0 10 18345 94.92 795 802 184.8
D 13 104 144712 693.52 788 778 207.5
D 8 195 103008 492.57 788 778 207.5
D 13 249 36457 171.91 788 778 207.5

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