ASTROSAT CZTI

Data Quality Report

Orbit 41465

Creation date: 2024-06-27T22:29:25.558273
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/AS1C06_010T05_9000005670_41465cztM0_level2.fits modeM0/AS1C06_010T05_9000005670_41465cztM0_level2_quad_clean.evt
Size (bytes)133,240,32036,682,560
Size127.1 MB 35.0 MB
Events in quadrant A1,228,758243,247
Events in quadrant B1,021,501252,482
Events in quadrant C1,274,836228,825
Events in quadrant D1,220,529216,383

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051431
B049011
C054871
D053791

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2364120.507614%
B236450.211506%
C23641034.357022%
D2364331.395939%

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 2364 2364 11 11 0.47% 0.47%
B 2364 2364 1 1 0.04% 0.04%
C 2364 2364 105 105 4.44% 4.44%
D 2364 2364 29 29 1.23% 1.23%

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 10 83 241204 4734.86 241 236 50.9
A 13 248 52233 1021.71 241 236 50.9
A 13 254 3833 70.68 241 236 50.9
B 5 255 40291 841.11 238 232 47.6
B 0 190 36567 762.92 238 232 47.6
B 12 111 5869 118.36 238 232 47.6
C 0 10 299180 5576.39 223 223 53.6
C 15 214 98910 1840.79 223 223 53.6
C 12 249 4077 71.89 223 223 53.6
D 1 47 145698 2532.71 228 221 57.4
D 5 222 64251 1114.74 228 221 57.4
D 2 249 49269 853.91 228 221 57.4

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