ASTROSAT CZTI

Data Quality Report

Orbit 22624

Creation date: 2024-06-27T18:43:43.898248
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/AS1A07_112T01_9000003360_22624cztM0_level2.evt modeM0/AS1A07_112T01_9000003360_22624cztM0_level2_quad_clean.evt
Size (bytes)533,954,88065,393,280
Size509.2 MB 62.4 MB
Events in quadrant A3,359,928392,531
Events in quadrant B3,417,890399,671
Events in quadrant C3,454,083385,969
Events in quadrant D5,518,198368,456

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138171
B0139411
C0141151
D0207591

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62061011.627457%
B62071051.691638%
C62071422.287740%
D62066119.845311%

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 7521 6207 0 0 0.00% 0.00%
B 7522 6208 0 0 0.00% 0.00%
C 7522 6208 0 0 0.00% 0.00%
D 7521 6207 487 487 6.48% 7.85%

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 13 254 10015 52.8 871 855 173.5
A 0 226 7696 39.43 871 855 173.5
A 3 137 6815 34.35 871 855 173.5
B 0 190 21647 131.08 861 842 158.7
B 12 111 17865 107.25 861 842 158.7
B 11 111 16398 98.01 861 842 158.7
C 14 238 135578 693.18 844 854 194.4
C 0 10 27195 135.53 844 854 194.4
C 13 61 5861 25.76 844 854 194.4
D 1 52 2143098 11057.0 806 784 193.8
D 12 227 140557 721.4 806 784 193.8
D 7 223 93346 477.73 806 784 193.8

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