ASTROSAT CZTI

Data Quality Report

Orbit 28025

Creation date: 2024-06-27T19:47:12.642252
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_045T02_9000004048_28025cztM0_level2.evt modeM0/AS1A10_045T02_9000004048_28025cztM0_level2_quad_clean.evt
Size (bytes)558,604,80098,542,080
Size532.7 MB 94.0 MB
Events in quadrant A3,526,120656,141
Events in quadrant B3,569,259664,784
Events in quadrant C3,644,232618,095
Events in quadrant D5,738,980593,370

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143750
B0146000
C0150060
D0219140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64821632.514656%
B64822223.424869%
C64822263.486578%
D64813405.246104%

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 7627 6484 0 0 0.00% 0.00%
B 7627 6482 8 8 0.10% 0.12%
C 7627 6483 0 0 0.00% 0.00%
D 7626 6482 212 212 2.78% 3.27%

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 8 34 22981 123.16 904 889 179.4
A 0 13 10813 55.32 904 889 179.4
A 13 254 10296 52.44 904 889 179.4
B 10 245 53198 312.85 891 872 167.3
B 12 111 20116 115.06 891 872 167.3
B 11 111 18321 104.33 891 872 167.3
C 3 233 195455 990.69 849 856 196.4
C 14 238 137763 696.98 849 856 196.4
C 13 61 5762 24.98 849 856 196.4
D 8 195 1076044 5311.02 857 836 202.4
D 1 52 1058737 5225.53 857 836 202.4
D 7 80 249475 1228.16 857 836 202.4

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