ASTROSAT CZTI

Data Quality Report

Orbit 07549

Creation date: 2024-06-27T15:21:05.560168
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/AS1G06_076T01_9000001038_07549cztM0_level2.evt modeM0/AS1G06_076T01_9000001038_07549cztM0_level2_quad_clean.evt
Size (bytes)557,458,560111,418,560
Size531.6 MB 106.3 MB
Events in quadrant A3,940,857702,763
Events in quadrant B4,075,705717,154
Events in quadrant C3,977,065691,702
Events in quadrant D4,299,871660,135

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0178273
B0180522
C0179254
D0190762

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8677430.495563%
B8678760.875778%
C8677390.449464%
D8678750.864254%

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 9204 8681 1 1 0.01% 0.01%
B 9204 8681 0 0 0.00% 0.00%
C 9204 8681 12 12 0.13% 0.14%
D 9204 8681 53 53 0.58% 0.61%

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 15 239 13274 59.27 1014 990 207.3
A 0 226 9448 40.81 1014 990 207.3
A 12 194 8884 38.09 1014 990 207.3
B 0 219 32602 159.53 1027 1001 198.1
B 0 214 24976 121.03 1027 1001 198.1
B 0 230 23075 111.44 1027 1001 198.1
C 9 68 75705 325.62 986 989 229.5
C 1 16 20208 83.76 986 989 229.5
C 8 128 15083 61.42 986 989 229.5
D 2 14 198203 815.63 979 947 241.8
D 2 136 187511 771.42 979 947 241.8
D 2 152 131934 541.62 979 947 241.8

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