ASTROSAT CZTI

Data Quality Report

Orbit 14004

Creation date: 2024-06-27T16:48:55.461951
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/AS1A04_038T02_9000002068_14004cztM0_level2.evt modeM0/AS1A04_038T02_9000002068_14004cztM0_level2_quad_clean.evt
Size (bytes)178,456,32039,551,040
Size170.2 MB 37.7 MB
Events in quadrant A974,545266,468
Events in quadrant B1,147,854269,192
Events in quadrant C1,017,287259,146
Events in quadrant D2,110,598240,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045141
B049410
C044860
D078310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A223930.133988%
B2239502.233140%
C223900.000000%
D22391878.351943%

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 2240 2240 2 2 0.09% 0.09%
B 2240 2240 38 38 1.70% 1.70%
C 2240 2240 0 0 0.00% 0.00%
D 2240 2240 172 172 7.68% 7.68%

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 4 2 10770 202.71 247 241 51.9
A 8 15 5457 100.42 247 241 51.9
A 1 162 3970 71.79 247 241 51.9
B 10 16 159771 3273.68 247 240 48.7
B 4 173 6548 129.44 247 240 48.7
B 0 214 6065 119.53 247 240 48.7
C 3 233 45978 779.6 247 247 58.7
C 8 128 4724 76.32 247 247 58.7
C 8 112 2301 35.02 247 247 58.7
D 1 52 690971 12080.83 236 230 57.2
D 13 122 329424 5757.49 236 230 57.2
D 13 104 122653 2141.14 236 230 57.2

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