ASTROSAT CZTI

Data Quality Report

Orbit 13347

Creation date: 2024-06-27T16:39:29.316689
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_082T01_9000001986_13347cztM0_level2.evt modeM0/AS1G08_082T01_9000001986_13347cztM0_level2_quad_clean.evt
Size (bytes)448,931,520107,026,560
Size428.1 MB 102.1 MB
Events in quadrant A3,236,661697,870
Events in quadrant B3,374,539718,054
Events in quadrant C3,291,823691,638
Events in quadrant D3,224,048653,356

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142983
B0145572
C0143202
D0146092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6896590.855568%
B6896871.261601%
C6896340.493039%
D6896741.073086%

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 9332 6898 1 1 0.01% 0.01%
B 9332 6898 3 3 0.03% 0.04%
C 9332 6898 0 0 0.00% 0.00%
D 9332 6898 23 23 0.25% 0.33%

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 1 162 15805 89.18 833 817 168.1
A 0 226 7504 39.79 833 817 168.1
A 12 194 6214 32.11 833 817 168.1
B 3 64 35352 218.31 843 822 158.2
B 12 111 18414 111.22 843 822 158.2
B 11 111 15373 91.99 843 822 158.2
C 3 233 116534 617.68 813 818 187.3
C 13 61 5970 27.5 813 818 187.3
C 14 234 5277 23.8 813 818 187.3
D 5 222 151887 799.04 793 773 189.1
D 2 136 45149 234.65 793 773 189.1
D 2 234 22337 114.02 793 773 189.1

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