ASTROSAT CZTI

Data Quality Report

Orbit 10517

Creation date: 2024-06-27T16:00:23.993279
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/AS1A03_127T02_9000001522_10517cztM0_level2.evt modeM0/AS1A03_127T02_9000001522_10517cztM0_level2_quad_clean.evt
Size (bytes)995,477,760192,764,160
Size949.4 MB 183.8 MB
Events in quadrant A5,875,6551,303,507
Events in quadrant B6,310,0101,328,577
Events in quadrant C5,059,7251,411,335
Events in quadrant D12,155,6491,029,133

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0101
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0302035088
B0337067553
C0280924815
D05959216383

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027454
B027436
C027336
D027454

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A112644463.959517%
B110815164.656619%
C113092171.918826%
D10325256524.842615%

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 37554 12428 193 193 0.51% 1.55%
B 37554 12228 164 164 0.44% 1.34%
C 37552 12412 7 7 0.02% 0.06%
D 37553 11551 2274 2274 6.06% 19.69%

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 15 239 536926 2077.41 1269 1238 257.9
A 13 251 234462 904.45 1269 1238 257.9
A 5 16 93081 356.17 1269 1238 257.9
B 4 239 1047740 4329.76 1270 1234 241.7
B 11 51 126461 518.11 1270 1234 241.7
B 0 214 65448 265.67 1270 1234 241.7
C 14 234 68435 229.28 1278 1280 292.9
C 13 61 9573 28.31 1278 1280 292.9
C 1 3 6698 18.5 1278 1280 292.9
D 2 16 5541609 23369.4 1005 975 237.1
D 1 20 1440229 6070.52 1005 975 237.1
D 8 195 520896 2192.93 1005 975 237.1

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