ASTROSAT CZTI

Data Quality Report

Orbit 29497

Creation date: 2024-06-27T20:04:43.230818
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/AS1A10_064T03_9000004246_29497cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29497cztM0_level2_quad_clean.evt
Size (bytes)746,496,000114,914,880
Size711.9 MB 109.6 MB
Events in quadrant A3,056,584838,649
Events in quadrant B3,142,083856,559
Events in quadrant C3,268,184802,364
Events in quadrant D12,724,118551,230

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130072
B0132861
C0135041
D0420431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6163220.356969%
B6163280.454324%
C61631853.001785%
D6164379161.502271%

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 7333 6164 14 14 0.19% 0.23%
B 7333 6164 6 6 0.08% 0.10%
C 7333 6164 0 0 0.00% 0.00%
D 7334 6164 3605 3605 49.15% 58.48%

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 15 174 59758 380.4 776 760 155.1
A 13 254 11566 69.67 776 760 155.1
A 3 137 7290 42.1 776 760 155.1
B 5 172 48832 328.96 775 759 146.1
B 0 190 25539 169.57 775 759 146.1
B 12 111 17260 112.91 775 759 146.1
C 14 238 182155 1056.64 739 745 171.7
C 14 254 87781 506.95 739 745 171.7
C 3 233 87189 503.5 739 745 171.7
D 8 195 4360250 32845.05 556 541 132.7
D 12 33 2581492 19444.3 556 541 132.7
D 1 52 1559635 11745.86 556 541 132.7

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