ASTROSAT CZTI

Data Quality Report

Orbit 10365

Creation date: 2024-06-27T15:58:25.824489
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/AS1G07_048T01_9000001494_10365cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10365cztM0_level2_quad_clean.evt
Size (bytes)730,177,920115,778,880
Size696.4 MB 110.4 MB
Events in quadrant A4,758,157787,167
Events in quadrant B4,931,585763,137
Events in quadrant C4,634,532762,135
Events in quadrant D7,154,832545,717

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06115341066
B06926949023
C06421044108
D011727290512

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07444
B08857
C08756
D07443

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0630411
B0632412
C0629409
D0607383

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A97431361.395874%
B94411611.705328%
C9774810.828729%
D81462733.351338%

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 14235 11409 0 0 0.00% 0.00%
B 14235 11153 1 1 0.01% 0.01%
C 14234 11415 0 0 0.00% 0.00%
D 14235 9800 53 53 0.37% 0.54%

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 0 226 11381 41.31 1233 1209 246.3
A 12 194 9991 35.66 1233 1209 246.3
A 13 253 6527 21.59 1233 1209 246.3
B 0 214 118118 524.98 1186 1161 222.8
B 4 239 85107 376.81 1186 1161 222.8
B 11 51 79804 353.0 1186 1161 222.8
C 14 234 23724 83.51 1181 1186 269.9
C 13 61 8924 28.67 1181 1186 269.9
C 11 7 3718 9.38 1181 1186 269.9
D 1 20 2902852 12611.08 981 954 230.1
D 1 52 196982 851.9 981 954 230.1
D 8 195 150967 651.93 981 954 230.1

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