ASTROSAT CZTI

Data Quality Report

Orbit 05644

Creation date: 2024-06-27T14:57:31.455455
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_032T02_9000000730_05644cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05644cztM0_level2_quad_clean.evt
Size (bytes)499,345,92091,699,200
Size476.2 MB 87.5 MB
Events in quadrant A3,379,007596,773
Events in quadrant B3,877,095590,665
Events in quadrant C3,402,934585,236
Events in quadrant D4,025,293553,776

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141303
B0159082
C0142352
D0161162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64541592.463588%
B64541582.448094%
C64541201.859312%
D64543355.190579%

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 8879 6456 1 1 0.01% 0.02%
B 8879 6456 9 9 0.10% 0.14%
C 8879 6456 0 0 0.00% 0.00%
D 8879 6456 204 204 2.30% 3.16%

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 4 2 87147 501.66 846 828 172.1
A 13 6 19877 110.71 846 828 172.1
A 0 50 10600 56.79 846 828 172.1
B 15 204 344932 2146.35 839 824 160.3
B 0 214 125072 774.99 839 824 160.3
B 10 245 50330 308.79 839 824 160.3
C 1 16 251293 1361.3 803 807 184.0
C 8 128 6906 33.15 803 807 184.0
C 13 61 6529 31.1 803 807 184.0
D 12 233 807638 4055.5 809 785 199.0
D 2 152 41706 205.68 809 785 199.0
D 8 195 33393 163.9 809 785 199.0

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