Observations

class gammapy.data.Observations(observations=None)

Bases: collections.abc.MutableSequence

Container class that holds a list of observations.

Parameters

observationslist

A list of Observation

Attributes Summary

ids	List of obs IDs (list)

Methods Summary

append(value)	S.append(value) – append value to the end of the sequence
clear()
count(value)
extend(values)	S.extend(iterable) – extend sequence by appending elements from the iterable
index(value, [start, [stop]])	Raises ValueError if the value is not present.
insert(idx, obs)	S.insert(index, value) – insert value before index
pop([index])	Raise IndexError if list is empty or index is out of range.
remove(value)	S.remove(value) – remove first occurrence of value.
reverse()	S.reverse() – reverse IN PLACE
select_time(time_intervals)	Select a time interval of the observations.

Attributes Documentation

ids

List of obs IDs (list)

Methods Documentation

append(value)

S.append(value) – append value to the end of the sequence

clear() → None -- remove all items from S

count(value) → integer -- return number of occurrences of value

extend(values)

S.extend(iterable) – extend sequence by appending elements from the iterable

index(value[, start[, stop]]) → integer -- return first index of value.

Raises ValueError if the value is not present.

Supporting start and stop arguments is optional, but recommended.

insert(idx, obs)

S.insert(index, value) – insert value before index

pop([index]) → item -- remove and return item at index (default last).

Raise IndexError if list is empty or index is out of range.

remove(value)

S.remove(value) – remove first occurrence of value. Raise ValueError if the value is not present.

reverse()

S.reverse() – reverse IN PLACE

select_time(time_intervals)

Select a time interval of the observations.

Parameters

time_intervalsastropy.time.Time or list of astropy.time.Time

list of Start and stop time of the time intervals or one Time interval

Returns

new_observationsObservations

A new Observations instance of the specified time intervals