ASTROSAT CZTI

Data Quality Report

Orbit 11033

Creation date: 2024-06-27T16:07:16.863292
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/AS1A04_113T01_9000001604_11033cztM0_level2.evt modeM0/AS1A04_113T01_9000001604_11033cztM0_level2_quad_clean.evt
Size (bytes)365,028,48040,383,360
Size348.1 MB 38.5 MB
Events in quadrant A3,723,803226,852
Events in quadrant B2,698,650239,186
Events in quadrant C1,978,080239,901
Events in quadrant D2,377,662229,844

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01406630
B0106893
C0863315
D097209

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A406347311.641644%
B40693598.822807%
C4064711.747047%
D4066872.139695%

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 4140 4070 175 175 4.23% 4.30%
B 4140 4071 106 106 2.56% 2.60%
C 4140 4071 0 0 0.00% 0.00%
D 4140 4071 5 5 0.12% 0.12%

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 898218 8607.91 502 490 104.3
A 8 5 432522 4142.56 502 490 104.3
A 14 238 335581 3213.04 502 490 104.3
B 4 239 679094 6794.08 510 496 99.9
B 12 111 11541 110.58 510 496 99.9
B 0 214 10370 98.86 510 496 99.9
C 8 128 4028 30.01 505 505 117.4
C 13 61 3779 27.89 505 505 117.4
C 8 112 2045 13.12 505 505 117.4
D 11 129 286893 2361.9 503 487 121.3
D 1 52 105722 867.84 503 487 121.3
D 5 97 24279 196.2 503 487 121.3

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