ASTROSAT CZTI

Data Quality Report

Orbit 05016

Creation date: 2024-06-27T14:50:12.327727
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/AS1T01_132T01_9000000636_05016cztM0_level2.evt modeM0/AS1T01_132T01_9000000636_05016cztM0_level2_quad_clean.evt
Size (bytes)1,008,984,960150,742,080
Size962.2 MB 143.8 MB
Events in quadrant A6,808,441920,069
Events in quadrant B7,203,354924,971
Events in quadrant C6,085,290925,353
Events in quadrant D9,545,119860,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295153
B0306873
C0278403
D0380633

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A135291371.012640%
B135292041.507872%
C13529590.436100%
D135298636.378890%

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 14659 13532 47 47 0.32% 0.35%
B 14659 13532 17 17 0.12% 0.13%
C 14659 13532 0 0 0.00% 0.00%
D 14659 13532 610 610 4.16% 4.51%

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 13 251 816062 2592.62 1533 1498 314.2
A 15 234 31328 94.94 1533 1498 314.2
A 0 50 25214 75.48 1533 1498 314.2
B 15 204 822769 2772.8 1553 1513 296.2
B 0 219 121283 404.38 1553 1513 296.2
B 4 80 73432 242.82 1553 1513 296.2
C 1 16 216028 617.62 1503 1511 347.3
C 13 61 12079 30.43 1503 1511 347.3
C 14 67 4651 9.04 1503 1511 347.3
D 2 136 1199209 3363.66 1452 1405 356.1
D 2 33 1179600 3308.59 1452 1405 356.1
D 13 53 844582 2367.8 1452 1405 356.1

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