ASTROSAT CZTI

Data Quality Report

Orbit 04223

Creation date: 2024-06-27T14:38:59.368145
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_240T01_9000000536_04223cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04223cztM0_level2_quad_clean.evt
Size (bytes)444,228,48070,004,160
Size423.6 MB 66.8 MB
Events in quadrant A3,470,788420,920
Events in quadrant B3,723,274431,515
Events in quadrant C2,763,312425,475
Events in quadrant D3,075,864409,860

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144102
B0149801
C0125711
D0135251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61832263.655184%
B61831171.892285%
C6183230.371988%
D6183831.342390%

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 7263 6184 149 149 2.05% 2.41%
B 7263 6184 80 80 1.10% 1.29%
C 7263 6184 0 0 0.00% 0.00%
D 7263 6184 54 54 0.74% 0.87%

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 50 464022 3190.14 712 697 145.2
A 12 247 188938 1296.1 712 697 145.2
A 8 15 43408 294.08 712 697 145.2
B 3 0 741978 5291.07 721 706 140.1
B 14 167 96835 686.15 721 706 140.1
B 15 204 29566 206.0 721 706 140.1
C 9 144 35747 215.49 697 700 162.6
C 10 65 5770 31.17 697 700 162.6
C 13 61 5617 30.23 697 700 162.6
D 13 239 315694 1859.78 698 678 169.4
D 2 232 51582 300.53 698 678 169.4
D 11 132 26094 150.05 698 678 169.4

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