ASTROSAT CZTI

Data Quality Report

Orbit 06493

Creation date: 2024-06-27T15:07:54.248439
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/AS1G06_065T01_9000000868_06493cztM0_level2.evt modeM0/AS1G06_065T01_9000000868_06493cztM0_level2_quad_clean.evt
Size (bytes)549,967,680146,721,600
Size524.5 MB 139.9 MB
Events in quadrant A3,978,921991,428
Events in quadrant B3,943,696983,856
Events in quadrant C3,564,477968,346
Events in quadrant D4,622,122940,606

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175053
B0171582
C0163422
D0192842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8051790.981245%
B8051740.919140%
C8051310.385045%
D80511381.714073%

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 9686 8053 29 29 0.30% 0.36%
B 9686 8053 23 23 0.24% 0.29%
C 9686 8053 1 1 0.01% 0.01%
D 9686 8053 68 68 0.70% 0.84%

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 15 234 279210 1456.34 940 917 191.1
A 15 236 41691 213.38 940 917 191.1
A 8 15 20339 101.64 940 917 191.1
B 0 219 118364 651.96 942 919 180.1
B 10 245 35835 193.83 942 919 180.1
B 4 81 32054 172.84 942 919 180.1
C 1 16 8916 38.06 908 910 210.4
C 12 4 8088 34.12 908 910 210.4
C 13 61 7218 29.99 908 910 210.4
D 8 195 535899 2402.1 910 880 222.7
D 5 97 235376 1052.83 910 880 222.7
D 2 152 167501 748.09 910 880 222.7

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