ASTROSAT CZTI

Data Quality Report

Orbit 05615

Creation date: 2024-06-27T14:57:14.901773
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/AS1G06_060T01_9000000726_05615cztM0_level2.evt modeM0/AS1G06_060T01_9000000726_05615cztM0_level2_quad_clean.evt
Size (bytes)477,483,84083,168,640
Size455.4 MB 79.3 MB
Events in quadrant A3,342,811530,257
Events in quadrant B3,575,242535,229
Events in quadrant C3,218,499515,853
Events in quadrant D3,883,641485,094

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139473
B0145662
C0136862
D0154832

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64791652.546689%
B64791722.654731%
C64791171.805834%
D64792684.136441%

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 8929 6481 7 7 0.08% 0.11%
B 8929 6481 1 1 0.01% 0.02%
C 8929 6481 5 5 0.06% 0.08%
D 8929 6481 126 126 1.41% 1.94%

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 50 50719 287.01 851 833 173.8
A 13 14 12934 69.62 851 833 173.8
A 0 226 8480 44.0 851 833 173.8
B 15 204 113018 691.38 853 834 162.3
B 4 81 67915 413.41 853 834 162.3
B 0 214 44750 270.65 853 834 162.3
C 1 16 47299 248.39 811 814 187.1
C 12 4 7464 35.53 811 814 187.1
C 13 61 6432 30.02 811 814 187.1
D 2 136 287199 1447.3 813 787 197.9
D 10 15 254009 1279.58 813 787 197.9
D 2 152 128101 643.34 813 787 197.9

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