ASTROSAT CZTI

Data Quality Report

Orbit 30170

Creation date: 2024-06-27T20:11:46.547723
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_097T03_9000004336_30170cztM0_level2.evt modeM0/AS1A10_097T03_9000004336_30170cztM0_level2_quad_clean.evt
Size (bytes)333,126,72043,165,440
Size317.7 MB 41.2 MB
Events in quadrant A1,988,820258,253
Events in quadrant B3,052,110259,839
Events in quadrant C2,296,832252,180
Events in quadrant D2,471,638247,068

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086680
B0122850
C093480
D098730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4103320.779917%
B4103120.292469%
C4103350.853034%
D41041333.240741%

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 4103 4103 18 18 0.44% 0.44%
B 4103 4103 2 2 0.05% 0.05%
C 4103 4103 6 6 0.15% 0.15%
D 4104 4104 116 116 2.83% 2.83%

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 13 151045 1545.69 476 465 97.4
A 13 254 7692 74.18 476 465 97.4
A 3 137 4771 44.2 476 465 97.4
B 6 159 1174537 12861.56 469 457 91.3
B 0 190 24212 260.23 469 457 91.3
B 12 111 11068 116.24 469 457 91.3
C 3 233 432681 3976.86 456 458 108.7
C 14 238 74522 681.46 456 458 108.7
C 2 114 9531 83.48 456 458 108.7
D 11 176 308478 2547.8 458 447 120.9
D 1 52 224906 1856.55 458 447 120.9
D 8 195 122661 1010.86 458 447 120.9

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