ASTROSAT CZTI

Data Quality Report

Orbit 23306

Creation date: 2024-06-27T18:52:36.183986
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_148T02_9000003444_23306cztM0_level2.evt modeM0/AS1A07_148T02_9000003444_23306cztM0_level2_quad_clean.evt
Size (bytes)132,137,28016,966,080
Size126.0 MB 16.2 MB
Events in quadrant A908,04794,019
Events in quadrant B910,26590,544
Events in quadrant C926,96986,290
Events in quadrant D1,132,693112,299

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096
B0119
C0108
D096

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09660
B09757
C010272
D09961

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105806886
B0105996911
C0109467222
D0132608818

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179830.166852%
B179210.055804%
C1751211.199315%
D1727120.694847%

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 6774 2225 0 0 0.00% 0.00%
B 6778 2217 0 0 0.00% 0.00%
C 7083 2180 6 6 0.08% 0.28%
D 6745 2152 7 7 0.10% 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 13 254 3133 59.5 234 230 48.8
A 0 226 2172 39.8 234 230 48.8
A 3 137 1908 34.39 234 230 48.8
B 12 111 4850 102.42 232 227 45.1
B 11 111 4465 93.89 232 227 45.1
B 0 190 4409 92.65 232 227 45.1
C 14 238 34598 678.53 214 216 50.7
C 0 239 26966 527.91 214 216 50.7
C 10 9 20045 391.33 214 216 50.7
D 7 238 157557 2921.57 216 210 53.9
D 1 239 50611 935.83 216 210 53.9
D 1 52 45716 844.94 216 210 53.9

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