ASTROSAT CZTI

Data Quality Report

Orbit 30630

Creation date: 2024-06-27T20:17:54.744398
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/AS1A10_055T01_9000004414_30630cztM0_level2.evt modeM0/AS1A10_055T01_9000004414_30630cztM0_level2_quad_clean.evt
Size (bytes)689,601,600103,299,840
Size657.7 MB 98.5 MB
Events in quadrant A3,410,019714,602
Events in quadrant B5,093,384707,790
Events in quadrant C3,492,847672,168
Events in quadrant D8,478,903609,375

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139451
B0190432
C0143511
D0294601

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60731191.959493%
B60721933.178524%
C60722303.787879%
D6072111918.428854%

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 7363 6074 0 0 0.00% 0.00%
B 7362 6073 1 1 0.01% 0.02%
C 7362 6073 13 13 0.18% 0.21%
D 7362 6073 953 953 12.94% 15.69%

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 13 19280 107.67 876 864 171.0
A 13 254 11417 61.7 876 864 171.0
A 8 192 11323 61.15 876 864 171.0
B 6 159 1689803 10619.67 851 833 159.0
B 0 190 44174 272.51 851 833 159.0
B 12 111 18289 109.76 851 833 159.0
C 14 238 137152 731.53 820 828 186.4
C 10 22 69761 369.9 820 828 186.4
C 0 10 48745 257.13 820 828 186.4
D 8 195 4726334 25100.9 813 795 188.3
D 1 52 247471 1310.28 813 795 188.3
D 10 253 227575 1204.6 813 795 188.3

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