ASTROSAT CZTI

Data Quality Report

Orbit 10863

Creation date: 2024-06-27T16:04:51.864386
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/AS1A03_118T01_9000001570_10863cztM0_level2.evt modeM0/AS1A03_118T01_9000001570_10863cztM0_level2_quad_clean.evt
Size (bytes)791,009,280111,355,200
Size754.4 MB 106.2 MB
Events in quadrant A7,761,780670,765
Events in quadrant B6,290,134679,147
Events in quadrant C4,179,692701,643
Events in quadrant D5,084,358664,636

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01920
B01920
C01920
D01920

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0297553
B0251212
C0193262
D0216672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94628078.528852%
B94626266.615937%
C9462390.412175%
D94621141.204819%

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 10397 9464 518 518 4.98% 5.47%
B 10397 9464 377 377 3.63% 3.98%
C 10397 9464 1 1 0.01% 0.01%
D 10397 9464 55 55 0.53% 0.58%

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 5 2631190 12352.01 1045 1022 212.9
A 0 254 735584 3449.71 1045 1022 212.9
A 15 223 213684 998.72 1045 1022 212.9
B 4 239 1741576 8452.23 1070 1043 205.9
B 0 231 132237 637.09 1070 1043 205.9
B 15 204 128212 617.55 1070 1043 205.9
C 8 208 24564 95.62 1059 1063 245.8
C 12 4 12342 45.89 1059 1063 245.8
C 13 61 7692 26.97 1059 1063 245.8
D 1 52 352739 1380.28 1048 1017 254.8
D 8 195 284628 1112.99 1048 1017 254.8
D 5 222 208930 815.92 1048 1017 254.8

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