ASTROSAT CZTI

Data Quality Report

Orbit 24203

Creation date: 2024-06-27T19:03:25.612013
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/AS1A07_160T05_9000003580_24203cztM0_level2.evt modeM0/AS1A07_160T05_9000003580_24203cztM0_level2_quad_clean.evt
Size (bytes)462,597,12078,114,240
Size441.2 MB 74.5 MB
Events in quadrant A3,279,836500,222
Events in quadrant B3,297,219502,837
Events in quadrant C3,425,523464,593
Events in quadrant D3,577,771456,583

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133342
B0134202
C0139542
D0144972

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6316881.393287%
B63161241.963268%
C63161251.979101%
D6316620.981634%

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 7561 6316 0 0 0.00% 0.00%
B 7561 6316 1 1 0.01% 0.02%
C 7561 6317 2 2 0.03% 0.03%
D 7561 6317 20 20 0.26% 0.32%

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 13 254 9644 52.36 850 834 168.3
A 0 226 7297 38.41 850 834 168.3
A 3 137 7130 37.42 850 834 168.3
B 12 111 18476 111.96 841 822 157.7
B 11 111 16145 97.18 841 822 157.7
B 14 111 14788 88.57 841 822 157.7
C 7 247 155384 849.98 796 801 181.9
C 14 238 129702 708.77 796 801 181.9
C 2 16 36248 194.9 796 801 181.9
D 1 52 253271 1300.89 808 786 194.1
D 8 195 182337 935.41 808 786 194.1
D 7 238 76329 389.22 808 786 194.1

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