ASTROSAT CZTI

Data Quality Report

Orbit 07611

Creation date: 2024-06-27T15:21:47.196913
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_117T01_9000001046_07611cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07611cztM0_level2_quad_clean.evt
Size (bytes)502,686,72080,009,280
Size479.4 MB 76.3 MB
Events in quadrant A3,276,090499,242
Events in quadrant B3,187,469509,732
Events in quadrant C4,770,813485,763
Events in quadrant D3,552,753479,142

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137693
B0134252
C0183652
D0148862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6434811.258937%
B6434891.383276%
C64344967.709046%
D64342013.124029%

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 7619 6435 0 0 0.00% 0.00%
B 7619 6434 1 1 0.01% 0.02%
C 7619 6435 401 401 5.26% 6.23%
D 7619 6435 109 109 1.43% 1.69%

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 0 128 121823 728.69 818 803 166.1
A 0 226 7856 42.47 818 803 166.1
A 12 194 7130 38.1 818 803 166.1
B 12 111 16608 102.68 814 796 154.0
B 4 81 15003 92.26 814 796 154.0
B 11 111 12984 79.15 814 796 154.0
C 9 68 1726604 9803.2 767 771 176.0
C 4 254 48074 268.69 767 771 176.0
C 13 61 5802 28.58 767 771 176.0
D 13 104 441464 2325.72 781 758 189.5
D 2 136 85214 445.7 781 758 189.5
D 2 152 53744 279.62 781 758 189.5

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