ASTROSAT CZTI

Data Quality Report

Orbit 47836

Creation date: 2024-08-02T10:23:33.181659
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/AS1T05_216T01_9000006356_47836cztM0_level2.fits modeM0/AS1T05_216T01_9000006356_47836cztM0_level2_quad_clean.evt
Size (bytes)506,139,840114,811,200
Size482.7 MB 109.5 MB
Events in quadrant A7,329,325750,857
Events in quadrant B4,099,413776,289
Events in quadrant C3,127,286775,393
Events in quadrant D3,651,164699,345

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265582
B0168102
C0141492
D0157402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68122984.374633%
B68133234.740936%
C6813480.704535%
D68131432.098929%

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 9072 6812 101 101 1.11% 1.48%
B 9073 6813 166 166 1.83% 2.44%
C 9073 6814 4 4 0.04% 0.06%
D 9073 6815 102 102 1.12% 1.50%

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 10 83 4122402 25655.97 775 759 160.7
A 0 31 208097 1290.62 775 759 160.7
A 3 137 8623 48.95 775 759 160.7
B 0 186 694958 4539.5 777 752 152.9
B 4 21 148882 968.64 777 752 152.9
B 0 200 51601 332.51 777 752 152.9
C 12 2 85485 467.24 773 777 181.3
C 14 254 20800 110.44 773 777 181.3
C 2 80 5841 27.93 773 777 181.3
D 12 33 159343 835.79 762 741 189.8
D 12 2 146144 766.23 762 741 189.8
D 2 249 118639 621.29 762 741 189.8

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