ASTROSAT CZTI

Data Quality Report

Orbit 03556

Creation date: 2024-06-27T14:30:55.916273
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/AS1G05_045T01_9000000468_03556cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03556cztM0_level2_quad_clean.evt
Size (bytes)461,148,48076,279,680
Size439.8 MB 72.7 MB
Events in quadrant A3,246,388466,726
Events in quadrant B3,653,840465,259
Events in quadrant C3,503,137451,437
Events in quadrant D3,096,729448,911

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143113
B0151282
C0154462
D0142712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68701151.673945%
B68701442.096070%
C6792841.236749%
D68701011.470160%

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 7880 6870 11 11 0.14% 0.16%
B 7880 6870 28 28 0.36% 0.41%
C 7880 6793 10 10 0.13% 0.15%
D 7880 6870 30 30 0.38% 0.44%

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 0 118 48973 290.97 805 786 165.6
A 3 1 34716 204.88 805 786 165.6
A 15 174 24515 143.28 805 786 165.6
B 4 81 215661 1348.59 809 788 159.3
B 15 204 129329 806.75 809 788 159.3
B 14 167 35836 219.97 809 788 159.3
C 1 192 337955 1871.99 767 768 180.1
C 15 208 93903 517.07 767 768 180.1
C 2 53 38681 210.49 767 768 180.1
D 13 223 86943 460.8 775 752 187.0
D 5 233 20268 104.34 775 752 187.0
D 13 239 14433 73.14 775 752 187.0

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