ASTROSAT CZTI

Data Quality Report

Orbit 19583

Creation date: 2024-06-27T18:04:28.276534
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/AS1T03_037T01_9000002912_19583cztM0_level2.evt modeM0/AS1T03_037T01_9000002912_19583cztM0_level2_quad_clean.evt
Size (bytes)464,722,56096,099,840
Size443.2 MB 91.6 MB
Events in quadrant A2,846,737640,887
Events in quadrant B3,062,519653,917
Events in quadrant C3,062,020632,918
Events in quadrant D4,714,964583,085

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118891
B0125462
C0124071
D0176761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5720140.244755%
B5719581.014163%
C5719741.293933%
D571959510.403917%

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 7045 5721 2 2 0.03% 0.03%
B 7044 5720 12 12 0.17% 0.21%
C 7044 5719 11 11 0.16% 0.19%
D 7044 5720 502 502 7.13% 8.78%

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 9 143 9182 57.9 736 723 146.1
A 13 254 7933 49.35 736 723 146.1
A 0 226 6486 39.44 736 723 146.1
B 0 198 43735 319.99 735 718 134.4
B 6 36 35619 259.61 735 718 134.4
B 15 32 31436 228.5 735 718 134.4
C 14 238 114244 678.11 728 734 167.4
C 0 207 54187 319.33 728 734 167.4
C 3 233 36812 215.53 728 734 167.4
D 1 52 1390446 8258.76 700 681 168.3
D 13 104 321872 1908.7 700 681 168.3
D 7 238 190392 1127.37 700 681 168.3

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