ASTROSAT CZTI

Data Quality Report

Orbit 06748

Creation date: 2024-06-27T15:11:13.708082
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/AS1G06_168T10_9000000932_06748cztM0_level2.evt modeM0/AS1G06_168T10_9000000932_06748cztM0_level2_quad_clean.evt
Size (bytes)617,728,320100,310,400
Size589.1 MB 95.7 MB
Events in quadrant A4,154,915620,685
Events in quadrant B3,938,074638,897
Events in quadrant C3,743,775627,490
Events in quadrant D6,317,258583,236

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0182303
B0173762
C0170022
D0242292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81552102.575107%
B81551421.741263%
C8155510.625383%
D815590111.048437%

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 9455 8157 39 39 0.41% 0.48%
B 9455 8157 2 2 0.02% 0.02%
C 9455 8157 0 0 0.00% 0.00%
D 9455 8157 638 638 6.75% 7.82%

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 207070 1030.78 967 947 200.0
A 14 111 86862 429.64 967 947 200.0
A 13 248 67142 331.03 967 947 200.0
B 4 81 57254 294.72 985 959 191.0
B 5 143 20384 101.69 985 959 191.0
B 12 111 19367 96.37 985 959 191.0
C 9 247 25604 111.34 946 953 221.4
C 13 61 7539 29.75 946 953 221.4
C 8 128 6344 24.35 946 953 221.4
D 2 33 1243218 5664.63 890 863 219.3
D 14 34 831197 3785.98 890 863 219.3
D 8 195 512792 2334.19 890 863 219.3

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