ASTROSAT CZTI

Data Quality Report

Orbit 23602

Creation date: 2024-06-27T18:56:40.231522
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_054T01_9000003486_23602cztM0_level2.evt modeM0/AS1A07_054T01_9000003486_23602cztM0_level2_quad_clean.evt
Size (bytes)626,967,360159,281,280
Size597.9 MB 151.9 MB
Events in quadrant A3,904,4791,094,331
Events in quadrant B4,928,7341,071,226
Events in quadrant C3,977,1051,037,806
Events in quadrant D5,584,6211,013,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0176751
B0204522
C0176991
D0226741

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8749300.342896%
B87493363.840439%
C8749650.742942%
D8749740.845811%

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 9219 8749 0 0 0.00% 0.00%
B 9219 8750 246 246 2.67% 2.81%
C 9219 8750 0 0 0.00% 0.00%
D 9219 8750 32 32 0.35% 0.37%

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 16006 73.52 1011 988 204.3
A 3 137 8805 38.27 1011 988 204.3
A 0 226 8573 37.13 1011 988 204.3
B 3 64 847999 4537.75 985 960 186.7
B 0 189 94204 499.53 985 960 186.7
B 15 33 35416 184.59 985 960 186.7
C 14 238 153436 677.78 967 971 224.9
C 7 247 24232 103.41 967 971 224.9
C 0 10 8763 34.64 967 971 224.9
D 1 52 833112 3499.4 979 948 237.8
D 9 85 816191 3428.25 979 948 237.8
D 12 233 121000 504.84 979 948 237.8

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