ASTROSAT CZTI

Data Quality Report

Orbit 14286

Creation date: 2024-06-27T16:52:56.277591
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/AS1G08_014T01_9000002104_14286cztM0_level2.evt modeM0/AS1G08_014T01_9000002104_14286cztM0_level2_quad_clean.evt
Size (bytes)555,577,92075,265,920
Size529.8 MB 71.8 MB
Events in quadrant A2,893,784509,537
Events in quadrant B3,170,695511,191
Events in quadrant C3,145,201485,529
Events in quadrant D7,246,476390,593

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117562
B0126421
C0125951
D0251291

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5457631.154480%
B54571212.217336%
C5457561.026205%
D5457175032.068902%

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 6733 5460 2 2 0.03% 0.04%
B 6733 5460 27 27 0.40% 0.49%
C 6733 5460 3 3 0.04% 0.05%
D 6733 5458 1509 1509 22.41% 27.65%

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 12 189 67312 462.08 723 709 144.1
A 15 69 25038 168.79 723 709 144.1
A 8 15 11286 73.38 723 709 144.1
B 0 229 221645 1646.69 707 691 134.2
B 3 209 46858 344.06 707 691 134.2
B 10 244 34489 251.88 707 691 134.2
C 3 233 448259 2825.29 690 696 158.4
C 13 61 4770 25.72 690 696 158.4
C 14 234 4463 23.78 690 696 158.4
D 5 222 4671599 33359.38 596 586 140.0
D 12 110 138297 983.5 596 586 140.0
D 13 122 79575 564.12 596 586 140.0

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