ASTROSAT CZTI

Data Quality Report

Orbit 10798

Creation date: 2024-06-27T16:04:02.456510
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_071T01_9000001562_10798cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10798cztM0_level2_quad_clean.evt
Size (bytes)546,742,08084,625,920
Size521.4 MB 80.7 MB
Events in quadrant A3,182,954536,659
Events in quadrant B4,657,675534,786
Events in quadrant C3,150,157556,795
Events in quadrant D5,147,228501,432

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134523
B0181772
C0132672
D0193672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61991031.661558%
B61994407.097919%
C6199771.242136%
D61994998.049685%

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 7484 6200 3 3 0.04% 0.05%
B 7484 6200 202 202 2.70% 3.26%
C 7484 6200 2 2 0.03% 0.03%
D 7484 6200 388 388 5.18% 6.26%

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 34030 204.35 806 791 162.7
A 8 15 27637 165.05 806 791 162.7
A 4 2 7582 41.75 806 791 162.7
B 4 239 952643 6444.25 798 781 147.7
B 15 204 209274 1411.53 798 781 147.7
B 0 85 197066 1328.88 798 781 147.7
C 14 234 26728 142.72 798 805 181.6
C 13 61 5971 28.44 798 805 181.6
C 14 67 5515 25.93 798 805 181.6
D 13 138 874371 4732.82 774 754 184.6
D 1 52 606677 3282.58 774 754 184.6
D 10 253 221747 1197.23 774 754 184.6

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