ASTROSAT CZTI

Data Quality Report

Orbit 13863

Creation date: 2024-06-27T16:47:05.258945
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/AS1A04_115T02_9000002042_13863cztM0_level2.evt modeM0/AS1A04_115T02_9000002042_13863cztM0_level2_quad_clean.evt
Size (bytes)563,806,080103,357,440
Size537.7 MB 98.6 MB
Events in quadrant A3,956,993667,260
Events in quadrant B3,567,671679,409
Events in quadrant C3,526,625668,112
Events in quadrant D5,541,855620,454

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164293
B0152572
C0150662
D0214672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71071111.561840%
B71071001.407063%
C7107841.181933%
D71075657.949909%

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 9113 7108 0 0 0.00% 0.00%
B 9113 7108 7 7 0.08% 0.10%
C 9113 7108 3 3 0.03% 0.04%
D 9113 7108 486 486 5.33% 6.84%

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 0 23 474004 2609.34 894 874 181.3
A 0 226 37849 203.92 894 874 181.3
A 1 162 11342 57.73 894 874 181.3
B 4 80 47012 271.23 888 866 170.1
B 0 214 29365 167.5 888 866 170.1
B 12 111 20570 115.81 888 866 170.1
C 3 233 105498 518.51 875 878 201.8
C 14 234 11261 51.46 875 878 201.8
C 13 61 6117 25.97 875 878 201.8
D 10 157 1552073 7660.42 853 836 202.5
D 13 189 296152 1458.35 853 836 202.5
D 5 222 195763 962.6 853 836 202.5

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