ASTROSAT CZTI

Data Quality Report

Orbit 05765

Creation date: 2024-06-27T14:58:53.469914
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_002T01_9000000742_05765cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05765cztM0_level2_quad_clean.evt
Size (bytes)510,966,72088,528,320
Size487.3 MB 84.4 MB
Events in quadrant A3,639,706537,670
Events in quadrant B3,843,872541,443
Events in quadrant C3,606,679533,672
Events in quadrant D3,844,592516,028

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016726239
B016979242
C016731229
D017465314

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01622
B01620
C01620
D01622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79331041.310979%
B79331081.361402%
C7937230.289782%
D79211011.275092%

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 8051 8043 0 0 0.00% 0.00%
B 8051 8048 0 0 0.00% 0.00%
C 8051 8043 0 0 0.00% 0.00%
D 8052 8045 61 61 0.76% 0.76%

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 0 226 9227 42.99 944 923 193.2
A 12 194 9201 42.86 944 923 193.2
A 15 236 5187 22.08 944 923 193.2
B 15 204 131525 716.48 951 927 182.3
B 12 111 17510 90.98 951 927 182.3
B 11 111 14119 72.37 951 927 182.3
C 8 128 21639 97.74 912 916 212.0
C 8 112 10104 43.34 912 916 212.0
C 9 16 8117 33.96 912 916 212.0
D 12 110 182186 813.93 911 882 222.8
D 2 14 84077 373.49 911 882 222.8
D 11 241 47143 207.68 911 882 222.8

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