ASTROSAT CZTI

Data Quality Report

Orbit 03343

Creation date: 2024-06-27T14:27:48.203543
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/AS1G05_246T01_9000000450_03343cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03343cztM0_level2_quad_clean.evt
Size (bytes)524,177,28080,256,960
Size499.9 MB 76.5 MB
Events in quadrant A2,929,932499,659
Events in quadrant B3,617,264513,571
Events in quadrant C6,056,887497,943
Events in quadrant D2,852,853488,450

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129113
B0147242
C0223922
D0127652

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6174170.275348%
B6174941.522514%
C61742584.178814%
D6174160.259151%

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 7459 6175 0 0 0.00% 0.00%
B 7459 6175 44 44 0.59% 0.71%
C 7459 6175 163 163 2.19% 2.64%
D 7459 6175 6 6 0.08% 0.10%

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 0 118 38642 251.61 737 722 150.7
A 8 15 29677 192.13 737 722 150.7
A 0 226 11043 68.48 737 722 150.7
B 15 204 422106 2914.21 753 735 144.6
B 6 203 79289 543.28 753 735 144.6
B 0 229 71707 490.84 753 735 144.6
C 8 208 2011080 11932.98 720 727 168.5
C 14 223 644349 3820.39 720 727 168.5
C 14 48 393034 2328.64 720 727 168.5
D 8 195 60361 339.78 722 701 175.6
D 13 239 25837 143.16 722 701 175.6
D 2 206 10737 57.16 722 701 175.6

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